Multi-step reaction with 29 steps
1.1: 98 percent / Et3N; DMAP / CH2Cl2 / 2 h / 0 - 25 °C
2.1: molecular sieves 4 Angstroem / acetonitrile / 0.25 h / 25 °C
3.1: NaBH4 / methanol / 0.5 h / 0 °C
3.2: H2O; CuCl2; CuO / acetonitrile / 2 h / 25 °C
4.1: 10.97 g / TBAF; AcOH / 2 h / 25 °C
5.1: 85 percent / DBU / CH2Cl2 / 0.5 h / 0 °C
6.1: nBu2SnO / methanol / 3 h / Heating
6.2: TMSOTf / CH2Cl2 / 12 h / 0 - 25 °C
6.3: 10.82 g / PPTS; MeOH / 1 h / 25 °C
7.1: 87 percent / NaH / dimethylformamide / 1 h / 0 - 25 °C
8.1: 95 percent / NaOH; MeOH / diethyl ether / 1 h / 25 °C
9.1: NaH / dimethylformamide / 0.08 h / 0 °C
9.2: 90 percent / nBu4NI / dimethylformamide / 4 h / 0 - 25 °C
10.1: 91 percent / DDQ; H2O / CH2Cl2 / 1 h / 0 - 25 °C
11.1: 97 percent / 2,6-lutidine / CH2Cl2 / 1 h / 0 - 25 °C
12.1: DABCO / [(Ph3P)3RhCl] / aq. ethanol / 2 h / Heating
13.1: 9.27 g / NMO; OsO4; H2O / acetone / 8 h / 25 °C
14.1: nBu2SnO / toluene / 3 h / Heating
14.2: toluene / 1 h / 0 - 25 °C
15.1: 96 percent / Et3N; DMAP / CH2Cl2 / 2 h / 0 - 25 °C
16.1: 96 percent / Et3N; MeOH / CH2Cl2 / 6 h / 40 °C
17.1: 92 percent / SnCl2; molecular sieves 4 Angstroem / diethyl ether / 3 h / 0 - 25 °C
18.1: 98 percent / K2CO3; MeOH / diethyl ether / 12 h / 25 °C
19.1: aq. NaIO4; NaHCO3 / methanol; CH2Cl2 / 2 h / 25 °C
20.1: 430 mg / iPr2NH; vinyl acetate / toluene / 12 h / 140 °C
21.1: 95 percent / TBAF / tetrahydrofuran / 0.5 h / 0 °C
22.1: 97 percent / Et3N; DMAP / CH2Cl2 / 2 h / 0 - 25 °C
23.1: 95 percent / TBAF; AcOH / tetrahydrofuran / 1 h / 25 °C
24.1: 85 percent / Martin sulfurane; Et3N / CHCl3 / 2 h / 50 °C
25.1: 90 percent / K2CO3; MeOH / 6 h / 25 °C
26.1: NaH; 18-crown-6 / tetrahydrofuran / 0.25 h / 0 °C
26.2: 80 percent / tetrahydrofuran / 2 h / 0 °C
27.1: NMO; H2O; OsO4 / quinuclidine / acetone / 36 h / 25 °C
28.1: nBu2SnO / methanol / 3 h / Heating
28.2: dioxane / 0.5 h / 15 °C
29.1: 85 mg / Dess-Martin periodinane; NaHCO3 / CH2Cl2 / 1 h / 25 °C
With
1,4-diaza-bicyclo[2.2.2]octane; 2,6-dimethylpyridine; methanol; dmap; sodium hydroxide; sodium tetrahydroborate; sodium periodate; osmium(VIII) oxide; vinyl acetate; N-methyl-2-indolinone; Martins sulfurane; 18-crown-6 ether; 4 A molecular sieve; tetrabutyl ammonium fluoride; water; sodium hydride; di(n-butyl)tin oxide; sodium hydrogencarbonate; potassium carbonate; Dess-Martin periodane; acetic acid; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine; diisopropylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone; tin(ll) chloride;
Quinuclidine; Wilkinson's catalyst;
In
tetrahydrofuran; methanol; diethyl ether; ethanol; dichloromethane; chloroform; N,N-dimethyl-formamide; acetone; toluene; acetonitrile;
1.1: Esterification / 2.1: Methylation / 3.1: Reduction / 3.2: Ring cleavage / 4.1: Cyclization / 5.1: Addition / 6.1: Cyclization / 6.2: Ring cleavage / 6.3: Methanolysis / 7.1: Methylation / 8.1: Debenzoylation / 9.1: Metallation / 9.2: Etherification / 10.1: Oxidation / 11.1: Etherification / 12.1: Isomerization / 13.1: Oxidation / 14.1: Cyclization / 14.2: Ring cleavage / 15.1: Esterification / 16.1: Deacylation / 17.1: Glycosidation / 18.1: Debenzoylation / 19.1: Oxidation / 20.1: Cyclizati;
DOI:10.1002/1521-3765(20000901)6:17<3116::AID-CHEM3116>3.0.CO;2-8