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7184-60-3

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  • Cyclopentanecarboxylicacid,2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]-,(1R,2R)-

    Cas No: 7184-60-3

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  • Cyclopentanecarboxylicacid,2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]-,(1R,2R)-

    Cas No: 7184-60-3

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7184-60-3 Usage

Description

BORRELIDIN is a novel macrolide compound that functions as a selective inhibitor of bacterial and eukaryotic threonyl-tRNA synthetase. It exhibits potent anti-angiogenic activity, modulates alternative splicing of VEGF, induces apoptosis in ALL cell lines, and triggers the unfolded protein response in oral cancer cells. BORRELIDIN is also cell permeable.

Uses

Used in Pharmaceutical Industry:
BORRELIDIN is used as an anti-angiogenic agent for its ability to prevent tube formation in rat aorta explants and induce apoptosis in endothelial cells. It also alters the splicing of VEGF mRNA, producing an antiangiogenic isoform of the growth factor.
Used in Antimalarial Drug Development:
BORRELIDIN is used as an antimalarial drug, as it effectively kills P. falciparum with an IC50 value of 1.8 nM, making it a significant lead for antimalarial discovery.
Used in Cancer Research:
BORRELIDIN is used as an apoptosis inducer in ALL cell lines and as an unfolded protein response inducer in oral cancer cells, which contributes to its potential as a therapeutic agent against cancer.
Used in Bacterial Inhibition:
Originally discovered as active against Borrelia species, BORRELIDIN is used as a selective inhibitor of bacterial and eukaryotic threonyl-tRNA synthetase, which has implications for treating bacterial infections.
At higher doses, BORRELIDIN is used as an inhibitor of cyclin-dependent kinase in yeast, resulting in growth arrest in the G1 phase, which can be beneficial in the study of cell cycle regulation and development of related therapeutics.

Biochem/physiol Actions

Borrelidin is a potent angiogenesis inhibitor that induces apoptosis in capillary tube-forming cells. Also displays antimalarial activity against drug-resistant Plasmodia. Antimicrobial and selective threonyl t-RNA synthetase inhibitor.

References

References/Citations 1) Ruan et al. (2005), A unique hydrophobic cluster near the active site contributes to differences in borrelidin inhibition among threonyl-tRNA synthetases; J. Biol. Chem., 280 571 2) Kawamura et al. (2003), Anti-angiogenesis effects of borrelidin are mediated through distinct pathways: threonyl-tRNA synthase and caspases are independently involved in suppression of proliferation and induction of apoptosis in endothelial cells; J. Antibiot., 56 709 3) Woolard et al. (2011) Borrelidin modulates the alternative splicing of VEGF in favour of anti-angiogenic isoforms; Chem. Soc. 2011 273 4) Habibi et al. (2012), Borrelidin, a small molecule nitrile-containing macrolide inhibitor of threonyl-tRNA synthase, is a potent inducer of apoptosis in acute lymphoblastic leukemia; Invest. New Drugs, 30 1361 5) Sidhu et al. (2015), Borrelidin Induces the Unfolded Protein Response in Oral Cancer Cells and Chop-Dependent Apoptosis; ACS Med. Chem. Lett., 6 1122

Check Digit Verification of cas no

The CAS Registry Mumber 7184-60-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,1,8 and 4 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 7184-60:
(6*7)+(5*1)+(4*8)+(3*4)+(2*6)+(1*0)=103
103 % 10 = 3
So 7184-60-3 is a valid CAS Registry Number.
InChI:InChI=1/C28H43NO6/c1-17-12-18(2)14-20(4)27(32)21(16-29)8-5-6-11-25(22-9-7-10-23(22)28(33)34)35-26(31)15-24(30)19(3)13-17/h5-6,8,17-20,22-25,27,30,32H,7,9-15H2,1-4H3,(H,33,34)/b6-5+,21-8-/t17-,18+,19-,20-,22+,23+,24-,25-,27+/m0/s1

7184-60-3SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name borrelidin

1.2 Other means of identification

Product number -
Other names Quinquangulin K 031

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:7184-60-3 SDS

7184-60-3Synthetic route

(1'R,1S,2S,2'R,8R,9S,11R,13S,15S,16S)-2-(7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentane-1'-carboxylic acid 2-trimethylsilanyl-ethyl ester
631919-63-6

(1'R,1S,2S,2'R,8R,9S,11R,13S,15S,16S)-2-(7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentane-1'-carboxylic acid 2-trimethylsilanyl-ethyl ester

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
With tetrabutyl ammonium fluoride In tetrahydrofuran at 0℃; for 2h;94%
(1R,2R)-2-((4E,6Z)-(2S,8R,9S,11R,13S,15S,16S)-7-Cyano-8,16-bis-methoxymethoxy-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentanecarboxylic acid

(1R,2R)-2-((4E,6Z)-(2S,8R,9S,11R,13S,15S,16S)-7-Cyano-8,16-bis-methoxymethoxy-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentanecarboxylic acid

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
With dimethylboron bromide In dichloromethane at -78℃; for 1h;
(1R,2R)-2-((4E,6Z)-(2S,9S,11R,13S,15S,16S)-7-Cyano-16-hydroxy-9,11,13,15-tetramethyl-8,18-dioxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentanecarboxylic acid
768395-41-1

(1R,2R)-2-((4E,6Z)-(2S,9S,11R,13S,15S,16S)-7-Cyano-16-hydroxy-9,11,13,15-tetramethyl-8,18-dioxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentanecarboxylic acid

A

borrelidin
7184-60-3

borrelidin

B

(1R,2R)-2-((4E,6Z)-(2S,8S,9S,11R,13S,15S,16S)-7-Cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentanecarboxylic acid

(1R,2R)-2-((4E,6Z)-(2S,8S,9S,11R,13S,15S,16S)-7-Cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl)-cyclopentanecarboxylic acid

Conditions
ConditionsYield
With sodium tetrahydroborate; cerium(III) chloride In methanol at 0℃; for 1h; Luche reaction; Title compound not separated from byproducts;
(1R,2R)-2-[(4E,6Z)-(2S,8R,9S,11R,13S,15S,16S)-8,16-Bis-(tert-butyl-dimethyl-silanyloxy)-7-cyano-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl]-cyclopentanecarboxylic acid

(1R,2R)-2-[(4E,6Z)-(2S,8R,9S,11R,13S,15S,16S)-8,16-Bis-(tert-butyl-dimethyl-silanyloxy)-7-cyano-9,11,13,15-tetramethyl-18-oxo-oxacyclooctadeca-4,6-dien-2-yl]-cyclopentanecarboxylic acid

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
With pyridine hydrogenfluoride In tetrahydrofuran at 20℃; for 48h;5.2 mg
With pyridine; pyridine hydrogenfluoride In tetrahydrofuran at 20℃; for 48h;5.20 mg
C36H48SiO3CO2CH2

C36H48SiO3CO2CH2

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 28 steps
1.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
2.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
3.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
4.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
5.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
6.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
7.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
8.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
9.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
10.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
11.1: Et3N / benzene / 1 h / 20 °C
12.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
13.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
14.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
15.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
15.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: DMAP / pentane / 168 h / 20 °C
16.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
17.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
18.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
19.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
20.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
21.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
22.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
23.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
24.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
25.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
26.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
27.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
28.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 27 steps
1.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
2.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
3.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
4.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
5.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
6.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
7.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
8.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
9.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
10.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
11.1: Et3N / benzene / 1 h / 20 °C
12.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
13.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
14.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
15.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
15.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: DMAP / pentane / 168 h / 20 °C
16.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
17.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
18.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
19.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
20.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
21.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
22.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
23.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
24.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
25.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
26.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
27.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 20 steps
1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
2: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
3: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
4: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
5: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
6: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
7: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
8: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
9: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
10: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
11: Et3N / benzene / 1 h / 20 °C
12: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
13: 93 percent / PPTS / ethanol / 10 h / 50 °C
14: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
15: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
16: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
17: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
18: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
19: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
20: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 22 steps
1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
2: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
3: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
4: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
5: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
6: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
7: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
8: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
9: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
10: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
11: Et3N / benzene / 1 h / 20 °C
12: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
13: 93 percent / PPTS / ethanol / 10 h / 50 °C
14: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
15: 19 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
16: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
18: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
19: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
20: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
22: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4R,8S,Z)-9-(tert-butyldiphenylsilyloxy)-2,4,6,8-tetramethylnon-3-en-1-ol
714973-96-3

(2S,4R,8S,Z)-9-(tert-butyldiphenylsilyloxy)-2,4,6,8-tetramethylnon-3-en-1-ol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 25 steps
1.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
2.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
3.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
4.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
6.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
7.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
8.1: Et3N / benzene / 1 h / 20 °C
9.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
10.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
11.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
12.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
12.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: DMAP / pentane / 168 h / 20 °C
13.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
14.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
16.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
17.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
18.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
21.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
22.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
23.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
24.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
25.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 24 steps
1.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
2.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
3.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
4.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
6.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
7.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
8.1: Et3N / benzene / 1 h / 20 °C
9.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
10.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
11.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
12.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
12.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: DMAP / pentane / 168 h / 20 °C
13.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
14.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
16.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
17.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
18.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
19.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
20.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
21.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
22.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
23.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
24.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 17 steps
1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
2: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
3: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
4: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
6: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
7: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
8: Et3N / benzene / 1 h / 20 °C
9: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
10: 93 percent / PPTS / ethanol / 10 h / 50 °C
11: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
12: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
13: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
14: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
15: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
17: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 19 steps
1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
2: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
3: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
4: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
6: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
7: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
8: Et3N / benzene / 1 h / 20 °C
9: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
10: 93 percent / PPTS / ethanol / 10 h / 50 °C
11: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
12: 19 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
13: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
15: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
16: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
17: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
18: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
19: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
C42H66O6SiNCOCF3
935872-55-2

C42H66O6SiNCOCF3

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
4: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
5: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
6: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
7: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
8: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(3S,4S,6S,8R,10S)-((S,3E,5Z)-7-allyloxy-6-bromo-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-7-oxohepta-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-oxoundecanoate
935872-03-0

(3S,4S,6S,8R,10S)-((S,3E,5Z)-7-allyloxy-6-bromo-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-7-oxohepta-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-oxoundecanoate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 14 steps
1.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
1.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
2.1: DMAP / pentane / 168 h / 20 °C
2.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
3.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
4.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
5.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
6.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
7.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
8.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
9.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
10.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
11.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
12.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
14.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 13 steps
1.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
1.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
2.1: DMAP / pentane / 168 h / 20 °C
2.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
3.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
4.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
5.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
6.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
7.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
8.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
9.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
10.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
11.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
13.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(S,2Z,4E)-allyl 2-bromo-7-(tert-butyldimethylsilyloxy)-7-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hepta-2,4-dienoate
935872-04-1

(S,2Z,4E)-allyl 2-bromo-7-(tert-butyldimethylsilyloxy)-7-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hepta-2,4-dienoate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 18 steps
1.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
2.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
3.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
4.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
5.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
5.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
6.1: DMAP / pentane / 168 h / 20 °C
6.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
7.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
8.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
9.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
10.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
11.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
12.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
14.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
15.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
16.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
18.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 17 steps
1.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
2.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
3.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
4.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
5.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
5.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
6.1: DMAP / pentane / 168 h / 20 °C
6.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
7.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
8.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
9.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
10.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
11.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
13.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
14.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
15.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
17.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(S,2Z,4E)-allyl 2-bromo-7-hydroxy-7-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hepta-2,4-dienoate
935872-05-2

(S,2Z,4E)-allyl 2-bromo-7-hydroxy-7-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}hepta-2,4-dienoate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 17 steps
1.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
2.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
3.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
4.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
4.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
5.1: DMAP / pentane / 168 h / 20 °C
5.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
6.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
7.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
8.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
9.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
10.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
11.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
13.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
14.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
15.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
17.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 16 steps
1.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
2.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
3.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
4.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
4.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
5.1: DMAP / pentane / 168 h / 20 °C
5.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
6.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
7.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
8.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
9.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
10.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
12.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
13.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
14.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
15.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
16.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(3S,4S,6S,8R,10S)-((S,3E,5Z)-7-(allyloxy)-6-bromo-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-7-oxohepta-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-(tetrahydro-2H-pyran-2-yloxy)undecanoate
935872-06-3

(3S,4S,6S,8R,10S)-((S,3E,5Z)-7-(allyloxy)-6-bromo-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-7-oxohepta-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-4,6,8,10-tetramethyl-11-(tetrahydro-2H-pyran-2-yloxy)undecanoate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 16 steps
1.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
2.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
3.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
3.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
4.1: DMAP / pentane / 168 h / 20 °C
4.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
5.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
6.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
7.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
8.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
9.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
10.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
12.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
13.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
14.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
15.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
16.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 15 steps
1.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
2.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
3.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
3.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
4.1: DMAP / pentane / 168 h / 20 °C
4.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
5.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
6.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
7.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
8.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
9.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
11.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
12.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
13.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
15.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(3S,4S,6S,8R,10S)-((S,3E,5Z)-7-(allyloxy)-6-bromo-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-7-oxohepta-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-11-hydroxy-4,6,8,10-tetramethylundecanoate
935872-07-4

(3S,4S,6S,8R,10S)-((S,3E,5Z)-7-(allyloxy)-6-bromo-1-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-7-oxohepta-3,5-dienyl) 3-(tert-butyldimethylsilyloxy)-11-hydroxy-4,6,8,10-tetramethylundecanoate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 15 steps
1.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
2.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
2.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3.1: DMAP / pentane / 168 h / 20 °C
3.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
4.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
5.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
6.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
7.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
8.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
9.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
11.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
12.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
13.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
15.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 14 steps
1.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
2.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
2.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3.1: DMAP / pentane / 168 h / 20 °C
3.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
4.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
5.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
6.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
7.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
8.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
9.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
10.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
11.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
12.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
14.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
C45H70O8Si

C45H70O8Si

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 13 steps
1.1: DMAP / pentane / 168 h / 20 °C
1.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
2.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
3.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
4.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
5.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
6.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
7.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
8.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
9.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
10.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
11.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
13.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 12 steps
1.1: DMAP / pentane / 168 h / 20 °C
1.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
2.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
3.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
4.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
5.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
6.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
7.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
8.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
9.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
10.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
12.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4E,6E,8S,9S,11R,13S,15S,16S)-allyl 16-(tert-butyldimethylsilyloxy)-8-hydroxy-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxylate
935872-09-6

(2S,4E,6E,8S,9S,11R,13S,15S,16S)-allyl 16-(tert-butyldimethylsilyloxy)-8-hydroxy-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxylate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 12 steps
1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
2: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
3: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
4: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
5: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
6: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
7: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
8: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
9: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
10: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
12: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 11 steps
1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
2: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
3: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
4: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
5: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
6: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
7: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
8: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
9: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
11: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4E,6E,8S,9S,11R,13S,15S,16S)-allyl 8,16-bis(tert-butyldimethylsilyloxy)-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxylate
935872-10-9

(2S,4E,6E,8S,9S,11R,13S,15S,16S)-allyl 8,16-bis(tert-butyldimethylsilyloxy)-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxylate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 11 steps
1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
2: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
3: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
4: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
5: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
6: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
7: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
8: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
9: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
11: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 10 steps
1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
2: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
3: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
4: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
5: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
6: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
7: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
8: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
9: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
10: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4E,6E,8S,9S,11R,13S,15S,16S)-16-(tert-butyldimethylsilyloxy)-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxylic acid
935872-12-1

(2S,4E,6E,8S,9S,11R,13S,15S,16S)-16-(tert-butyldimethylsilyloxy)-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxylic acid

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
2: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
3: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
4: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
5: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
6: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
7: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
8: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
9: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
10: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 9 steps
1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
2: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
3: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
4: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
5: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
6: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
7: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
8: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
9: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4E,6E,8S,9S,11R,13S,15S,16S)-16-(tert-butyldimethylsilyloxy)-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxamide
935872-13-2

(2S,4E,6E,8S,9S,11R,13S,15S,16S)-16-(tert-butyldimethylsilyloxy)-2-{(1R,2R)-2-[(4-methoxybenzyloxy)methyl]cyclopentyl}-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carboxamide

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
2: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
3: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
4: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
5: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
6: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
7: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
8: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
9: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 8 steps
1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
4: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
5: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
6: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
7: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
8: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
((1R,2R)-cyclopentane-1,2-diyl)dimethanol
57287-24-8

((1R,2R)-cyclopentane-1,2-diyl)dimethanol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 26 steps
1.1: NaH / dimethylformamide / -20 - 20 °C
2.1: 6.24 g / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3.1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
4.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
5.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
6.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
7.1: 73 percent / benzene / 48 h / 80 °C
8.1: 84 percent / benzene / 39 h / 70 °C
9.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
10.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
11.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
12.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
13.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
13.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14.1: DMAP / pentane / 168 h / 20 °C
14.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
15.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
16.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
17.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
18.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
19.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
20.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
22.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
23.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
24.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
25.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
26.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 25 steps
1.1: NaH / dimethylformamide / -20 - 20 °C
2.1: 6.24 g / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3.1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
4.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
5.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
6.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
7.1: 73 percent / benzene / 48 h / 80 °C
8.1: 84 percent / benzene / 39 h / 70 °C
9.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
10.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
11.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
12.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
13.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
13.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14.1: DMAP / pentane / 168 h / 20 °C
14.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
15.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
16.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
17.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
18.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
21.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
22.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
23.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
24.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
25.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 18 steps
1: NaH / dimethylformamide / -20 - 20 °C
2: 6.24 g / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
3: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
4: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
5: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
6: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
7: 73 percent / benzene / 48 h / 80 °C
8: 96 percent / DBU; LiCl / acetonitrile / 2 h / 0 °C
9: 94 percent / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
10: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
11: 93 percent / PPTS / ethanol / 10 h / 50 °C
12: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
13: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
14: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
15: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
16: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
18: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2R,4S)-1-hydroxy-2,4-dimethylpentyl acetate
90270-02-3, 97937-36-5

(2R,4S)-1-hydroxy-2,4-dimethylpentyl acetate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 34 steps
1.1: 98 percent / imidazole / CH2Cl2 / 0.5 h / 20 °C
2.1: 98 percent / K2CO3; MeOH / 2 h / 20 °C
3.1: imidazole / dimethylformamide / 0 - 20 °C
4.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
5.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
6.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
6.2: tetrahydrofuran; hexane / 1 h / -30 °C
6.3: tetrahydrofuran; hexane / -20 °C
7.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
8.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
9.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
10.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
11.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
12.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
13.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
14.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
15.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
16.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
17.1: Et3N / benzene / 1 h / 20 °C
18.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
19.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
20.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
21.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
21.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
22.1: DMAP / pentane / 168 h / 20 °C
22.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
23.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
24.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
25.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
26.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
27.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
28.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
29.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
30.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
31.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
32.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
33.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
34.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 33 steps
1.1: 98 percent / imidazole / CH2Cl2 / 0.5 h / 20 °C
2.1: 98 percent / K2CO3; MeOH / 2 h / 20 °C
3.1: imidazole / dimethylformamide / 0 - 20 °C
4.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
5.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
6.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
6.2: tetrahydrofuran; hexane / 1 h / -30 °C
6.3: tetrahydrofuran; hexane / -20 °C
7.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
8.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
9.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
10.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
11.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
12.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
13.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
14.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
15.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
16.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
17.1: Et3N / benzene / 1 h / 20 °C
18.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
19.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
20.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
21.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
21.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
22.1: DMAP / pentane / 168 h / 20 °C
22.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
23.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
24.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
25.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
26.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
27.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
28.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
29.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
30.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
31.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
32.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
33.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 26 steps
1.1: 98 percent / imidazole / CH2Cl2 / 0.5 h / 20 °C
2.1: 98 percent / K2CO3; MeOH / 2 h / 20 °C
3.1: imidazole / dimethylformamide / 0 - 20 °C
4.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
5.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
6.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
6.2: tetrahydrofuran; hexane / 1 h / -30 °C
6.3: tetrahydrofuran; hexane / -20 °C
7.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
8.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
9.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
10.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
11.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
12.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
13.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
14.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
15.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
16.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
17.1: Et3N / benzene / 1 h / 20 °C
18.1: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
19.1: 93 percent / PPTS / ethanol / 10 h / 50 °C
20.1: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
21.1: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
22.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
23.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
24.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
25.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
26.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4R)-5-(tert-butyl(dimethyl)silyloxy)-2,4-dimethyl-1-pentanol
147782-80-7

(2S,4R)-5-(tert-butyl(dimethyl)silyloxy)-2,4-dimethyl-1-pentanol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 32 steps
1.1: imidazole / dimethylformamide / 0 - 20 °C
2.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
3.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
4.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
4.2: tetrahydrofuran; hexane / 1 h / -30 °C
4.3: tetrahydrofuran; hexane / -20 °C
5.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
6.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
7.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
8.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
9.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
10.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
11.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
12.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
13.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
14.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
15.1: Et3N / benzene / 1 h / 20 °C
16.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
17.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
18.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
19.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
19.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: DMAP / pentane / 168 h / 20 °C
20.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
21.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
22.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
23.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
24.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
25.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
26.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
27.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
28.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
29.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
30.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
31.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
32.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 31 steps
1.1: imidazole / dimethylformamide / 0 - 20 °C
2.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
3.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
4.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
4.2: tetrahydrofuran; hexane / 1 h / -30 °C
4.3: tetrahydrofuran; hexane / -20 °C
5.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
6.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
7.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
8.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
9.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
10.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
11.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
12.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
13.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
14.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
15.1: Et3N / benzene / 1 h / 20 °C
16.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
17.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
18.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
19.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
19.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: DMAP / pentane / 168 h / 20 °C
20.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
21.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
22.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
23.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
24.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
25.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
26.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
27.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
28.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
29.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
30.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
31.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 24 steps
1.1: imidazole / dimethylformamide / 0 - 20 °C
2.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
3.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
4.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
4.2: tetrahydrofuran; hexane / 1 h / -30 °C
4.3: tetrahydrofuran; hexane / -20 °C
5.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
6.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
7.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
8.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
9.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
10.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
11.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
12.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
13.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
14.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
15.1: Et3N / benzene / 1 h / 20 °C
16.1: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
17.1: 93 percent / PPTS / ethanol / 10 h / 50 °C
18.1: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
19.1: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
20.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
21.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
22.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
23.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
24.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2R,4S)-5-{[tert-butyl(diphenyl)silyl]oxy}-2,4-dimethylpentan-1-ol
157837-64-4

(2R,4S)-5-{[tert-butyl(diphenyl)silyl]oxy}-2,4-dimethylpentan-1-ol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 30 steps
1.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
2.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
2.2: tetrahydrofuran; hexane / 1 h / -30 °C
2.3: tetrahydrofuran; hexane / -20 °C
3.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
4.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
5.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
6.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
7.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
8.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
9.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
10.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
11.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
13.1: Et3N / benzene / 1 h / 20 °C
14.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
15.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
16.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
17.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
17.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
18.1: DMAP / pentane / 168 h / 20 °C
18.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
19.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
20.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
21.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
22.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
23.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
24.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
25.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
26.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
27.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
28.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
29.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
30.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 29 steps
1.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
2.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
2.2: tetrahydrofuran; hexane / 1 h / -30 °C
2.3: tetrahydrofuran; hexane / -20 °C
3.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
4.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
5.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
6.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
7.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
8.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
9.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
10.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
11.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
13.1: Et3N / benzene / 1 h / 20 °C
14.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
15.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
16.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
17.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
17.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
18.1: DMAP / pentane / 168 h / 20 °C
18.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
19.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
20.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
21.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
22.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
23.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
24.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
25.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
26.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
27.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
28.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
29.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 22 steps
1.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
2.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
2.2: tetrahydrofuran; hexane / 1 h / -30 °C
2.3: tetrahydrofuran; hexane / -20 °C
3.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
4.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
5.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
6.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
7.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
8.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
9.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
10.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
11.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
13.1: Et3N / benzene / 1 h / 20 °C
14.1: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
15.1: 93 percent / PPTS / ethanol / 10 h / 50 °C
16.1: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
17.1: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
18.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
19.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
20.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
22.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2R,4S)-5-{[tert-butyl(diphenyl)silyl]oxy}-2,4-dimethylpentanal
157837-65-5

(2R,4S)-5-{[tert-butyl(diphenyl)silyl]oxy}-2,4-dimethylpentanal

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 29 steps
1.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
1.2: tetrahydrofuran; hexane / 1 h / -30 °C
1.3: tetrahydrofuran; hexane / -20 °C
2.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
3.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
4.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
5.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
6.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
7.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
8.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
9.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
10.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
11.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
12.1: Et3N / benzene / 1 h / 20 °C
13.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
14.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
15.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
16.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
16.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17.1: DMAP / pentane / 168 h / 20 °C
17.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
18.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
19.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
20.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
21.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
22.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
23.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
24.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
25.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
26.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
27.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
28.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
29.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 28 steps
1.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
1.2: tetrahydrofuran; hexane / 1 h / -30 °C
1.3: tetrahydrofuran; hexane / -20 °C
2.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
3.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
4.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
5.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
6.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
7.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
8.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
9.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
10.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
11.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
12.1: Et3N / benzene / 1 h / 20 °C
13.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
14.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
15.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
16.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
16.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17.1: DMAP / pentane / 168 h / 20 °C
17.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
18.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
19.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
20.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
21.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
22.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
23.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
24.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
25.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
26.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
27.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
28.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 21 steps
1.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
1.2: tetrahydrofuran; hexane / 1 h / -30 °C
1.3: tetrahydrofuran; hexane / -20 °C
2.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
3.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
4.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
5.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
6.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
7.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
8.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
9.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
10.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
11.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
12.1: Et3N / benzene / 1 h / 20 °C
13.1: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
14.1: 93 percent / PPTS / ethanol / 10 h / 50 °C
15.1: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
16.1: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
17.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
18.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
21.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2S,4R)-5-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-2,4-dimethylpentyl acetate
335060-49-6

(2S,4R)-5-{[(1,1-dimethylethyl)(dimethyl)silyl]oxy}-2,4-dimethylpentyl acetate

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 33 steps
1.1: 98 percent / K2CO3; MeOH / 2 h / 20 °C
2.1: imidazole / dimethylformamide / 0 - 20 °C
3.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
4.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
5.2: tetrahydrofuran; hexane / 1 h / -30 °C
5.3: tetrahydrofuran; hexane / -20 °C
6.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
7.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
8.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
9.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
10.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
11.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
12.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
13.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
14.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
16.1: Et3N / benzene / 1 h / 20 °C
17.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
18.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
19.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
20.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
20.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: DMAP / pentane / 168 h / 20 °C
21.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
22.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
23.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
24.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
25.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
26.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
27.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
28.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
29.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
30.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
31.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
32.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
33.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 32 steps
1.1: 98 percent / K2CO3; MeOH / 2 h / 20 °C
2.1: imidazole / dimethylformamide / 0 - 20 °C
3.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
4.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
5.2: tetrahydrofuran; hexane / 1 h / -30 °C
5.3: tetrahydrofuran; hexane / -20 °C
6.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
7.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
8.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
9.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
10.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
11.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
12.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
13.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
14.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
16.1: Et3N / benzene / 1 h / 20 °C
17.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
18.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
19.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
20.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
20.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: DMAP / pentane / 168 h / 20 °C
21.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
22.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
23.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
24.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
25.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
26.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
27.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
28.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
29.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
30.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
31.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
32.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 25 steps
1.1: 98 percent / K2CO3; MeOH / 2 h / 20 °C
2.1: imidazole / dimethylformamide / 0 - 20 °C
3.1: 4.19 g / PPTS; EtOH / 7 h / 50 °C
4.1: 88 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
5.1: n-BuLi / tetrahydrofuran; hexane / -78 - -40 °C
5.2: tetrahydrofuran; hexane / 1 h / -30 °C
5.3: tetrahydrofuran; hexane / -20 °C
6.1: 2.44 g / Bu3P; HCO2NH4 / Pd(PPh3)4 / toluene / 1 h / 70 °C
7.1: 97 percent / DDQ; H2O / CH2Cl2 / 0.5 h / 20 °C
8.1: 80 percent / TiCl4 / CH2Cl2; hexane / 0.25 h / -15 °C
9.1: 91 percent / H2 / Rh[(nbd)dppb]BF4 / CH2Cl2 / 2 h / 20 °C / 7500.75 Torr
10.1: 100 percent / PPTS / CH2Cl2 / 2 h / 20 °C
11.1: 96 percent / TBAF / tetrahydrofuran / 3 h / 0 °C
12.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
13.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
14.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
16.1: Et3N / benzene / 1 h / 20 °C
17.1: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
18.1: 93 percent / PPTS / ethanol / 10 h / 50 °C
19.1: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
20.1: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
21.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
22.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
23.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
24.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
25.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(1R,2R)-2-(((4-methoxybenzyl)oxy)methyl)cyclopentane-1-carbaldehyde
714974-00-2

(1R,2R)-2-(((4-methoxybenzyl)oxy)methyl)cyclopentane-1-carbaldehyde

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 24 steps
1.1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
2.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
3.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
4.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
5.1: 73 percent / benzene / 48 h / 80 °C
6.1: 84 percent / benzene / 39 h / 70 °C
7.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
8.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
9.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
10.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
11.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
11.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12.1: DMAP / pentane / 168 h / 20 °C
12.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
13.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
14.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
15.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
16.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
17.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
18.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
19.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
20.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
21.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
22.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
23.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
24.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 23 steps
1.1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
2.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
3.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
4.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
5.1: 73 percent / benzene / 48 h / 80 °C
6.1: 84 percent / benzene / 39 h / 70 °C
7.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
8.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
9.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
10.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
11.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
11.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12.1: DMAP / pentane / 168 h / 20 °C
12.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
13.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
14.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
15.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
16.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
17.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
18.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
19.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
20.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
21.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
22.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
23.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 16 steps
1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
2: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
3: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
4: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
5: 73 percent / benzene / 48 h / 80 °C
6: 96 percent / DBU; LiCl / acetonitrile / 2 h / 0 °C
7: 94 percent / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
8: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
9: 93 percent / PPTS / ethanol / 10 h / 50 °C
10: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
11: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
12: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
13: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
14: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
15: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
16: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
((1R,2R)-2-(((4-methoxybenzyl)oxy)methyl)cyclopentyl)methanol
714974-24-0

((1R,2R)-2-(((4-methoxybenzyl)oxy)methyl)cyclopentyl)methanol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 25 steps
1.1: 6.24 g / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
2.1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
3.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
4.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
5.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
6.1: 73 percent / benzene / 48 h / 80 °C
7.1: 84 percent / benzene / 39 h / 70 °C
8.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
9.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
10.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
11.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
12.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
12.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: DMAP / pentane / 168 h / 20 °C
13.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
14.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
16.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
17.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
18.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
21.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
22.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
23.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
24.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
25.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 24 steps
1.1: 6.24 g / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
2.1: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
3.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
4.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
5.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
6.1: 73 percent / benzene / 48 h / 80 °C
7.1: 84 percent / benzene / 39 h / 70 °C
8.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
9.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
10.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
11.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
12.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
12.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13.1: DMAP / pentane / 168 h / 20 °C
13.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
14.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
15.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
16.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
17.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
18.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
19.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
20.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
21.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
22.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
23.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
24.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 17 steps
1: 6.24 g / Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
2: 54 percent / tetrahydrofuran / 0.5 h / -78 °C
3: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
4: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
5: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
6: 73 percent / benzene / 48 h / 80 °C
7: 96 percent / DBU; LiCl / acetonitrile / 2 h / 0 °C
8: 94 percent / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
9: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
10: 93 percent / PPTS / ethanol / 10 h / 50 °C
11: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
12: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
13: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
14: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
15: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
17: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(2R,4S,6R,8S)-2,4,6,8-tetramethyl-9-(tetrahydro-2H-pyran-2-yloxy)nonanal
714973-98-5

(2R,4S,6R,8S)-2,4,6,8-tetramethyl-9-(tetrahydro-2H-pyran-2-yloxy)nonanal

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 21 steps
1.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
2.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
3.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
4.1: Et3N / benzene / 1 h / 20 °C
5.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
6.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
7.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
8.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
8.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
9.1: DMAP / pentane / 168 h / 20 °C
9.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
10.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
11.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
12.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
13.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
14.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
15.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
17.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
18.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
21.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 20 steps
1.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
2.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
3.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
4.1: Et3N / benzene / 1 h / 20 °C
5.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
6.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
7.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
8.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
8.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
9.1: DMAP / pentane / 168 h / 20 °C
9.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
10.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
11.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
12.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
13.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
14.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
15.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
16.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
17.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
18.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
19.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
20.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 13 steps
1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
2: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
3: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
4: Et3N / benzene / 1 h / 20 °C
5: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
6: 93 percent / PPTS / ethanol / 10 h / 50 °C
7: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
8: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
9: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
10: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
11: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
12: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
13: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(+)-(S)-1-((1R,2R)-2-((4-methoxybenzyloxy)methyl)cyclopentyl)but-3-en-1-ol
714974-01-3

(+)-(S)-1-((1R,2R)-2-((4-methoxybenzyloxy)methyl)cyclopentyl)but-3-en-1-ol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 23 steps
1.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
2.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
3.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
4.1: 73 percent / benzene / 48 h / 80 °C
5.1: 84 percent / benzene / 39 h / 70 °C
6.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
7.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
8.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
9.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
10.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
10.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11.1: DMAP / pentane / 168 h / 20 °C
11.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
12.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
13.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
14.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
15.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
16.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
17.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
18.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
19.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
20.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
21.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
22.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
23.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 22 steps
1.1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
2.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
3.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
4.1: 73 percent / benzene / 48 h / 80 °C
5.1: 84 percent / benzene / 39 h / 70 °C
6.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
7.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
8.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
9.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
10.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
10.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11.1: DMAP / pentane / 168 h / 20 °C
11.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
12.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
13.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
14.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
15.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
16.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
18.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
19.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
20.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
22.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 15 steps
1: 99 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
2: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
3: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
4: 73 percent / benzene / 48 h / 80 °C
5: 96 percent / DBU; LiCl / acetonitrile / 2 h / 0 °C
6: 94 percent / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
7: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
8: 93 percent / PPTS / ethanol / 10 h / 50 °C
9: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
10: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
11: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
12: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
13: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
15: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(-)-(2S,4S,6R,8S)-2,4,6,8-tetramethyl-9-(tetrahydro-2H-pyran-2-yloxy)nonan-1-ol
714974-13-7

(-)-(2S,4S,6R,8S)-2,4,6,8-tetramethyl-9-(tetrahydro-2H-pyran-2-yloxy)nonan-1-ol

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 22 steps
1.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
2.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
3.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
4.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
5.1: Et3N / benzene / 1 h / 20 °C
6.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
7.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
8.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
9.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
9.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10.1: DMAP / pentane / 168 h / 20 °C
10.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
11.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
13.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
14.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
15.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
16.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
18.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
19.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
20.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
22.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 21 steps
1.1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
2.1: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
3.1: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
4.1: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
5.1: Et3N / benzene / 1 h / 20 °C
6.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
7.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
8.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
9.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
9.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10.1: DMAP / pentane / 168 h / 20 °C
10.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
11.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
13.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
14.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
15.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
17.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
18.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
21.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 14 steps
1: 89 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
2: 92 percent / SmI2 / tetrahydrofuran / 0.33 h / -78 °C
3: 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
4: 347 mg / LiOH; aq. H2O2 / tetrahydrofuran / 3 h / 0 °C
5: Et3N / benzene / 1 h / 20 °C
6: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
7: 93 percent / PPTS / ethanol / 10 h / 50 °C
8: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
9: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
10: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
11: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
12: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
14: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
(1'R,2'R,3S)-3-(tert-butyldimethylsilyloxy)-3-[2'-(4''-methoxybenzyloxymethyl)cyclopentyl]propanal
714974-16-0

(1'R,2'R,3S)-3-(tert-butyldimethylsilyloxy)-3-[2'-(4''-methoxybenzyloxymethyl)cyclopentyl]propanal

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 20 steps
1.1: 73 percent / benzene / 48 h / 80 °C
2.1: 84 percent / benzene / 39 h / 70 °C
3.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
4.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
5.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
6.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
7.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
7.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
8.1: DMAP / pentane / 168 h / 20 °C
8.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
9.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
10.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
11.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
12.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
13.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
14.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
15.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
16.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
17.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
18.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
19.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
20.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 19 steps
1.1: 73 percent / benzene / 48 h / 80 °C
2.1: 84 percent / benzene / 39 h / 70 °C
3.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
4.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
5.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
6.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
7.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
7.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
8.1: DMAP / pentane / 168 h / 20 °C
8.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
9.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
10.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
11.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
12.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
13.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
14.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
15.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
16.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
17.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
18.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
19.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 12 steps
1: 73 percent / benzene / 48 h / 80 °C
2: 96 percent / DBU; LiCl / acetonitrile / 2 h / 0 °C
3: 94 percent / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
4: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
5: 93 percent / PPTS / ethanol / 10 h / 50 °C
6: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
7: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
8: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
9: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
10: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
11: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
12: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
tert-butyl(((S)-1-((1R,2R)-2-(((4-methoxybenzyl)oxy)methyl)cyclopentyl)but-3-en-1-yl)oxy)dimethylsilane
714974-15-9

tert-butyl(((S)-1-((1R,2R)-2-(((4-methoxybenzyl)oxy)methyl)cyclopentyl)but-3-en-1-yl)oxy)dimethylsilane

borrelidin
7184-60-3

borrelidin

Conditions
ConditionsYield
Multi-step reaction with 22 steps
1.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
2.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
3.1: 73 percent / benzene / 48 h / 80 °C
4.1: 84 percent / benzene / 39 h / 70 °C
5.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
6.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
7.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
8.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
9.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
9.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10.1: DMAP / pentane / 168 h / 20 °C
10.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
11.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
13.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
14.1: 31 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
15.1: 73 percent / K2CO3; MeOH / 1.5 h / 20 °C
16.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
17.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
18.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
19.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
20.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
21.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
22.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 21 steps
1.1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
2.1: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
3.1: 73 percent / benzene / 48 h / 80 °C
4.1: 84 percent / benzene / 39 h / 70 °C
5.1: 96 percent / HF*pyridine; pyridine / tetrahydrofuran / 228 h / 20 °C
6.1: 452 mg / Et3N; DMAP / benzene / 2 h / 20 °C
7.1: 96 percent / PPTS / ethanol / 16 h / 50 °C
8.1: TPAP; NMO; 4 Angstroem molecular sieves / CH2Cl2 / 1.5 h / 20 °C
9.1: SmI2 / tetrahydrofuran / 1 h / -78 °C
9.2: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
10.1: DMAP / pentane / 168 h / 20 °C
10.2: 31.2 mg / NaBH4; CeCl3*7H2O / methanol / 0.5 h / 0 °C
11.1: 85 percent / 2,6-lutidine / CH2Cl2 / 0.5 h / 0 °C
12.1: 85 percent / NaBH4 / Pd(PPh3)4 / methanol / 0.5 h / 0 °C
13.1: 69 percent / NH3; Et3N; BOP / dioxane; tetrahydrofuran / 48 h / 23 °C
14.1: 10 percent / 2-chloro-1,3-dimethylimidazolinium chloride / CH2Cl2 / 1.5 h / 20 °C
15.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
16.1: 8.50 mg / NaBH4; CeCl3*7H2O / methanol / 0.08 h / 0 °C
17.1: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
18.1: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
19.1: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
20.1: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
21.1: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
Multi-step reaction with 14 steps
1: H2O; NMO; OsO4 / acetone / 4 h / 20 °C
2: 533 mg / NaIO4; H2O / methanol / 2 h / 0 °C
3: 73 percent / benzene / 48 h / 80 °C
4: 96 percent / DBU; LiCl / acetonitrile / 2 h / 0 °C
5: 94 percent / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
6: 204 mg / Et3N; DMAP / benzene / 0.5 h / 20 °C
7: 93 percent / PPTS / ethanol / 10 h / 50 °C
8: 79 percent / TPAP; 4 Angstroem molecular sieves; NMO / CH2Cl2 / 0.5 h / 20 °C
9: 21 percent / SmI2; HMPA; O2 / tetrahydrofuran / 1 h / -78 °C
10: 75 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 °C
11: 90 percent / DDQ; H2O / CH2Cl2 / 0.25 h / 0 °C
12: Dess-Martin periodinane / CH2Cl2 / 0.5 h / 20 °C
13: NaClO2; NaH2PO4*2H2O; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 0.5 h / 20 °C
14: 5.20 mg / HF*pyridine; pyridine / tetrahydrofuran / 48 h / 20 °C
View Scheme
thiophenol
108-98-5

thiophenol

borrelidin
7184-60-3

borrelidin

C34H47NO5S
1429308-25-7

C34H47NO5S

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃;96%
piperazine
110-85-0

piperazine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(piperazine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(piperazine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: piperazine In dichloromethane at 20℃;
96%
morpholine
110-91-8

morpholine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(morpholine-4-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(morpholine-4-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: morpholine In dichloromethane at 20℃;
96%
borrelidin
7184-60-3

borrelidin

2-propanethiol
75-33-2

2-propanethiol

C31H49NO5S
1429308-23-5

C31H49NO5S

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃;93%
borrelidin
7184-60-3

borrelidin

allyl alcohol
107-18-6

allyl alcohol

C31H47NO6
1429308-11-1

C31H47NO6

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane91%
1-phenylmethylpiperazine
2759-28-6

1-phenylmethylpiperazine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-2-[(1R,2R)-2-(4-benzylpiperazine-1-carbonyl)cyclopentyl]-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-2-[(1R,2R)-2-(4-benzylpiperazine-1-carbonyl)cyclopentyl]-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 1-phenylmethylpiperazine In dichloromethane at 20℃;
90%
1-butanethiol
109-79-5

1-butanethiol

borrelidin
7184-60-3

borrelidin

C32H51NO5S
1429308-24-6

C32H51NO5S

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃;89%
piperidine
110-89-4

piperidine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(piperidine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(piperidine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: piperidine In dichloromethane at 20℃;
89%
borrelidin
7184-60-3

borrelidin

ethanethiol
75-08-1

ethanethiol

C30H47NO5S
1429308-21-3

C30H47NO5S

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃;88%
2-(aminoethyl)pyridine
2706-56-1

2-(aminoethyl)pyridine

borrelidin
7184-60-3

borrelidin

(1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]-N-(2-(pyridin-2-yl)ethyl)cyclopentane-1-carboxamide

(1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]-N-(2-(pyridin-2-yl)ethyl)cyclopentane-1-carboxamide

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 2-(aminoethyl)pyridine In dichloromethane at 20℃;
88%
2-Hydroxymethylpyridine
586-98-1

2-Hydroxymethylpyridine

borrelidin
7184-60-3

borrelidin

pyridin-2-ylmethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S, 15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate

pyridin-2-ylmethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S, 15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; for 0.5h;
Stage #2: 2-Hydroxymethylpyridine In tetrahydrofuran at 20℃;
88%
1-methyl-piperazine
109-01-3

1-methyl-piperazine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(4-methylpiperazine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(4-methylpiperazine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 1-methyl-piperazine In dichloromethane at 20℃;
87%
4-Methoxyphenethylamine
55-81-2

4-Methoxyphenethylamine

borrelidin
7184-60-3

borrelidin

(1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]-N-(4-methoxyphenethyl)cyclopentane-1-carboxamide

(1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]-N-(4-methoxyphenethyl)cyclopentane-1-carboxamide

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 4-Methoxyphenethylamine In dichloromethane at 20℃;
87%
2-(5-methoxyindol-3-yl)ethylamine
608-07-1

2-(5-methoxyindol-3-yl)ethylamine

borrelidin
7184-60-3

borrelidin

C39H55N3O6

C39H55N3O6

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 2-(5-methoxyindol-3-yl)ethylamine In dichloromethane at 20℃;
86%
ethanol
64-17-5

ethanol

borrelidin
7184-60-3

borrelidin

C30H47NO6
1429308-08-6

C30H47NO6

Conditions
ConditionsYield
With toluene-4-sulfonic acid Reflux;85%
borrelidin
7184-60-3

borrelidin

glycine
56-40-6

glycine

C30H46N2O7
1429308-14-4

C30H46N2O7

Conditions
ConditionsYield
With triethylamine; isobutyl chloroformate In tetrahydrofuran at 20℃;85%
1-(4-methoxyphenyl)piperazine
38212-30-5

1-(4-methoxyphenyl)piperazine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-2-[(1R,2R)-2-(4-(4-methoxyphenyl)piperazine-1-carbonyl)cyclopentyl]-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-2-[(1R,2R)-2-(4-(4-methoxyphenyl)piperazine-1-carbonyl)cyclopentyl]-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 4-(4-methoxyphenyl)piperazine In dichloromethane at 20℃;
85%
N-butylpentylamine
39536-61-3

N-butylpentylamine

borrelidin
7184-60-3

borrelidin

(1R,2R)-N-butyl-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclo-octadeca-4,6-dien-2-yl]-N-pentylcyclopentane-1-carboxamide

(1R,2R)-N-butyl-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclo-octadeca-4,6-dien-2-yl]-N-pentylcyclopentane-1-carboxamide

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: N-butylpentylamine In dichloromethane at 20℃;
85%
D-leucine methyl ester
23032-21-5

D-leucine methyl ester

borrelidin
7184-60-3

borrelidin

methyl {(1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclo-octadeca-4,6-dien-2-yl]cyclopentane-1-carbonyl}-d-leucinate

methyl {(1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclo-octadeca-4,6-dien-2-yl]cyclopentane-1-carbonyl}-d-leucinate

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: D-leucine methyl ester In dichloromethane at 20℃;
85%
1-piperidinoethanol
3040-44-6

1-piperidinoethanol

borrelidin
7184-60-3

borrelidin

2-(piperidin-1-yl)ethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S,11R, 13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate

2-(piperidin-1-yl)ethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S,11R, 13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; for 0.5h;
Stage #2: 1-piperidinoethanol In tetrahydrofuran at 20℃;
85%
L-isoleucine
73-32-5

L-isoleucine

borrelidin
7184-60-3

borrelidin

C34H54N2O7
1429308-18-8

C34H54N2O7

Conditions
ConditionsYield
With triethylamine; isobutyl chloroformate In tetrahydrofuran at 20℃;84%
2-(morpholin-4-yl)ethanol
622-40-2

2-(morpholin-4-yl)ethanol

borrelidin
7184-60-3

borrelidin

2-morpholinoethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S, 15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate
322480-23-9

2-morpholinoethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S,11R,13S, 15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; for 0.5h;
Stage #2: 2-(morpholin-4-yl)ethanol In tetrahydrofuran at 20℃;
83%
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane73%
pyrrolidine
123-75-1

pyrrolidine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(pyrrolidine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-9,11, 13,15-tetramethyl-2-[(1R,2R)-2-(pyrrolidine-1-carbonyl)cyclopentyl]-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: pyrrolidine In dichloromethane at 20℃;
83%
borrelidin
7184-60-3

borrelidin

diazomethyl-trimethyl-silane
18107-18-1

diazomethyl-trimethyl-silane

C29H45NO6
7121-67-7

C29H45NO6

Conditions
ConditionsYield
In methanol; toluene at 20℃;82%
L-alanin
56-41-7

L-alanin

borrelidin
7184-60-3

borrelidin

C31H48N2O7
1429308-15-5

C31H48N2O7

Conditions
ConditionsYield
With triethylamine; isobutyl chloroformate In tetrahydrofuran at 20℃;82%
propargyl alcohol
107-19-7

propargyl alcohol

borrelidin
7184-60-3

borrelidin

C31H45NO6
1429308-12-2

C31H45NO6

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In tetrahydrofuran at 20℃; for 0.5h;81%
2-(N,N-dimethylamino)ethanol
108-01-0

2-(N,N-dimethylamino)ethanol

borrelidin
7184-60-3

borrelidin

2-(dimethylamino)ethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S, 11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetra-methyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate
1429308-13-3

2-(dimethylamino)ethyl (1R,2R)-2-[(2S,4E,6Z,8R,9S, 11R,13S,15S,16S)-7-cyano-8,16-dihydroxy-9,11,13,15-tetra-methyl-18-oxooxacyclooctadeca-4,6-dien-2-yl]cyclopentane-1-carboxylate

Conditions
ConditionsYield
With dmap; benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane81%
Stage #1: borrelidin With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; for 0.5h;
Stage #2: 2-(N,N-dimethylamino)ethanol In tetrahydrofuran at 20℃;
1-(2-hydroxyethyl)piperazine
103-76-4

1-(2-hydroxyethyl)piperazine

borrelidin
7184-60-3

borrelidin

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-2-[(1R,2R)-2-(4-(2-hydroxyethyl)piperazine-1-carbonyl)cyclopentyl]-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

(2S,4E,6Z,8R,9S,11R,13S,15S,16S)-8,16-dihydroxy-2-[(1R,2R)-2-(4-(2-hydroxyethyl)piperazine-1-carbonyl)cyclopentyl]-9,11,13,15-tetramethyl-18-oxooxacyclooctadeca-4,6-diene-7-carbonitrile

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine In dichloromethane at 20℃; for 0.5h;
Stage #2: 1-(2-hydroxyethyl)piperazine In dichloromethane at 20℃;
80%
2-phenylethanol
60-12-8

2-phenylethanol

borrelidin
7184-60-3

borrelidin

C36H51NO6

C36H51NO6

Conditions
ConditionsYield
Stage #1: borrelidin With benzotriazol-1-ol; dicyclohexyl-carbodiimide In tetrahydrofuran at 20℃; for 0.5h;
Stage #2: 2-phenylethanol In tetrahydrofuran at 20℃;
80%

7184-60-3Upstream product

7184-60-3Relevant articles and documents

Total synthesis of borrelidin

Nagamitsu, Tohru,Takano, Daisuke,Marumoto, Kaori,Fukuda, Takeo,Furuya, Kentaro,Otoguro, Kazuhiko,Takeda, Kazuyoshi,Kuwajima, Isao,Harigaya, Yoshihiro,Omura, Satoshi

, p. 2744 - 2756 (2008/02/05)

(Chemical Equation Presented) The total synthesis of borrelidin has been achieved. The best feature of our synthetic route is macrocyclization at C11-C12 for the construction of an 18-membered ring after esterification between two segments. A detailed examination of the macrocyclization led us to the samarium(II) iodide-mediated intramolecular Reformatsky-type reaction as the most efficient synthetic approach. The two key segments were synthesized through regioselective methylation, directed hydrogenation, stereoselective Reformatsky-type reaction, and MgBr2·Et2O-mediated chelation-controlled allylation.

Total synthesis of (-)-borrelidin

Nagamitsu, Tohru,Takano, Daisuke,Fukuda, Takeo,Otoguro, Kazuhiko,Kuwajima, Isao,Harigaya, Yoshihiro,Omura, Satoshi

, p. 1865 - 1867 (2007/10/03)

Matrix presented. The total synthesis of borrelidin has been achieved. The best feature of our synthetic route is Sml2-mediated intramolecular Reformatsky-type reaction for macrocyclization after esterification between two segments. The two key segments were synthesized through chelation-controlled carbotitanation, chelation-controlled hydrogenation, stereoselective Reformatsky reaction, and MgBr2·Et2O-mediated chelation-controlled allylation.

Enantioselective total synthesis of borrelidin

Duffey, Matthew O.,LeTiran, Arnaud,Morken, James P.

, p. 1458 - 1459 (2007/10/03)

The first total synthesis of the natural product borrelidin is described. The propionate fragment of the molecule was concisely synthesized through catalytic enantioselective reductive aldol reactions, a catalytic Negishi coupling, and a catalytic directed hydrogenation. The propionate segment was then fused to the vinyl iodide fragment through a catalytic Sonogashira coupling. Subsequent catalytic hydrostannylation and catalytic cyanation allowed access to the target structure. Copyright

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