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269410-08-4

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269410-08-4 Usage

Chemical Properties

Off-white to tan powder

Uses

Different sources of media describe the Uses of 269410-08-4 differently. You can refer to the following data:
1. 4-Pyrazoleboronic Acid Pinacol Ester is used in the preparation of Rho kinase (ROCK) inhibitors as wella s other biologically active compounds.
2. 1H-Pyrazole-4-boronic acid pinacol ester is a useful reagent for Suzuki-Miyaura cross-couplings as well as Ruthenium-catalyzed asymmetric hydrogenation. It is also used as reagent for preparing VEGF, Aurora, RHO (ROCK), Janus Kinase 2, c-MET, ALK, S-nitrsoflutathione reductase, CDC7, Acetyl-CoA carboxylase inhibitors as well as other biologically active compounds.
3. Reagent used forSuzuki-Miyaura cross-couplings Ruthenium-catalyzed asymmetric hydrogenation Reagent used in preparation of inhibitors of many highly significant therapeutic enzymes and kinases containing the privileged scaffold pyrazole, includingVEGF AuroraRho (ROCK)Janus Kinase 2 (JAK) c-MET ALK S-nitrosoglutathione reductase CDC7 Acetyl-CoA carboxylase Prosurvival Bcl-2 protein Viral RNA-Dependent RNA polymerase Long Chain Fatty Acid Elongase 6PI3 AKT Chk1 Protein Kinase B

Check Digit Verification of cas no

The CAS Registry Mumber 269410-08-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,9,4,1 and 0 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 269410-08:
(8*2)+(7*6)+(6*9)+(5*4)+(4*1)+(3*0)+(2*0)+(1*8)=144
144 % 10 = 4
So 269410-08-4 is a valid CAS Registry Number.
InChI:InChI=1/C9H15BN2O2/c1-8(2)9(3,4)14-10(13-8)7-5-11-12-6-7/h5-6H,1-4H3,(H,11,12)

269410-08-4 Well-known Company Product Price

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  • TCI America

  • (T2756)  4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole  >97.0%(GC)

  • 269410-08-4

  • 1g

  • 590.00CNY

  • Detail
  • TCI America

  • (T2756)  4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole  >97.0%(GC)

  • 269410-08-4

  • 5g

  • 2,190.00CNY

  • Detail
  • Alfa Aesar

  • (L19654)  1H-Pyrazole-4-boronic acid pinacol ester, 98%   

  • 269410-08-4

  • 1g

  • 802.0CNY

  • Detail
  • Alfa Aesar

  • (L19654)  1H-Pyrazole-4-boronic acid pinacol ester, 98%   

  • 269410-08-4

  • 5g

  • 3394.0CNY

  • Detail
  • Aldrich

  • (525057)  4-Pyrazoleboronicacidpinacolester  97%

  • 269410-08-4

  • 525057-1G

  • 721.31CNY

  • Detail
  • Aldrich

  • (525057)  4-Pyrazoleboronicacidpinacolester  97%

  • 269410-08-4

  • 525057-5G

  • 3,209.31CNY

  • Detail
  • Aldrich

  • (525057)  4-Pyrazoleboronicacidpinacolester  97%

  • 269410-08-4

  • 525057-25G

  • 14,215.50CNY

  • Detail

269410-08-4SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

1.2 Other means of identification

Product number -
Other names 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

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:269410-08-4 SDS

269410-08-4Synthetic route

1-(1-ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1029716-44-6

1-(1-ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With hydrogenchloride; 2,3-dimethyl-2,3-butane diol In water at 10 - 25℃; for 4.083h;94%
With hydrogenchloride; 2,3-dimethyl-2,3-butane diol In tert-butyl methyl ether; 1,2-dichloro-ethane at 0 - 20℃; Large scale;77.3%
With hydrogenchloride; 2,3-dimethyl-2,3-butane diol In tert-butyl methyl ether; 1,2-dichloro-ethane at 0 - 20℃; Large scale;77.3%
4-bromo-1H-pyrazole
2075-45-8

4-bromo-1H-pyrazole

bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; tetrabutylammomium bromide; potassium carbonate In 1,4-dioxane for 12h; Inert atmosphere; Reflux;94%
With dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2; potassium acetate In N,N-dimethyl-formamide at 100℃;25%
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate In 1,4-dioxane at 80℃; Inert atmosphere;
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate In 1,4-dioxane at 80℃; Miyaura Borylation Reaction; Inert atmosphere;
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate In 1,4-dioxane at 80℃; Miyaura Borylation Reaction; Inert atmosphere;
NH-pyrazole
288-13-1

NH-pyrazole

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
25015-63-8

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 3,4,7,8-Tetramethyl-o-phenanthrolin In tetrahydrofuran at 80℃; for 4h; Inert atmosphere; Glovebox; regioselective reaction;88%
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 3,4,7,8-Tetramethyl-o-phenanthrolin In tetrahydrofuran at 80℃; for 4h; Schlenk technique; Inert atmosphere;67%
4-chloro-1H-pyrazole
15878-00-9

4-chloro-1H-pyrazole

bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With potassium phosphate tribasic heptahydrate; chloro(2-dicyclohexylphosphino-2’,4’,6’-triisopropyl-1,1‘-biphenyl)[2-(2’-amino-1,1‘-biphenyl’)]palladium(II); XPhos In ethanol at 20℃; for 0.5h;88%
tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate
552846-17-0

tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
at 180℃;80.2%
at 180℃; for 0.0833333h;72%
4-iodo-1H-pyrazole-1-carboxylic acid tert-butyl ester
121669-70-3

4-iodo-1H-pyrazole-1-carboxylic acid tert-butyl ester

2-dimethylamino-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
557087-01-1

2-dimethylamino-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With iPrBu2MgLi In 2-methyltetrahydrofuran at -20 - -10℃; Large scale;79%
2-dimethylamino-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
557087-01-1

2-dimethylamino-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

4-bromopyrazole-1-carboxylic acid tert-butyl ester
1150271-23-0

4-bromopyrazole-1-carboxylic acid tert-butyl ester

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With n-Bu3MgLi In tetrahydrofuran at -20 - -10℃; Large scale;76%
NH-pyrazole
288-13-1

NH-pyrazole

bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With (1,5-cyclooctadiene)(methoxy)iridium(I) dimer; 3,4,7,8-Tetramethyl-o-phenanthrolin In tetrahydrofuran at 80℃; for 21h; Inert atmosphere; Glovebox;56%
2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
61676-62-8

2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

1-trimethylsilyl-4-iodopyrazole

1-trimethylsilyl-4-iodopyrazole

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
Stage #1: 4-iodo-1-trimethylsilylpyrazole With isopropylmagnesium chloride In tetrahydrofuran at -6 - 0℃; Inert atmosphere;
Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran at 0 - 20℃; Inert atmosphere;
54.8%
Stage #1: 4-iodo-1-trimethylsilylpyrazole With isopropylmagnesium chloride In tetrahydrofuran at -6 - 0℃; for 0.166667h; Inert atmosphere;
Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran at 0 - 20℃; for 2h; Inert atmosphere;
Stage #3: With water; ammonium chloride In tetrahydrofuran at -6 - 0℃;
54.8%
Stage #1: 4-iodo-1-trimethylsilylpyrazole With isopropylmagnesium chloride In tetrahydrofuran at -6 - 0℃; for 0.166667h;
Stage #2: 2-Isopropoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran at 0 - 20℃; for 2.17h;
54.8%
4-iodopyrazole
3469-69-0

4-iodopyrazole

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane
25015-63-8

4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
Stage #1: With triethylamine; (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride In 1,4-dioxane at 80℃; for 18h;
Stage #2: 4-iodopyrazole; 4,4,5,5-tetramethyl-[1,3,2]-dioxaboralane In 1,4-dioxane at 80℃; for 18h;
4-iodopyrazole
3469-69-0

4-iodopyrazole

2-methoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
1195-66-0

2-methoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
Stage #1: 4-iodopyrazole With isopropylmagnesium chloride In tetrahydrofuran at -10℃; for 2.5h; Inert atmosphere;
Stage #2: 2-methoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane In tetrahydrofuran at 20℃; for 2h; Inert atmosphere;
bis(pinacol)diborane
73183-34-3

bis(pinacol)diborane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate / ethanol / 16 h / Inert atmosphere; Reflux
2: 180 °C
View Scheme
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

3-[(5-bromo-[1,2,4]triazolo[1,5-a]pyrazin-8-yl)-tert-butoxycarbonyl-amino]benzoic acid ethyl ester
959756-24-2

3-[(5-bromo-[1,2,4]triazolo[1,5-a]pyrazin-8-yl)-tert-butoxycarbonyl-amino]benzoic acid ethyl ester

3-{tert-butoxycarbonyl-[5-(1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyrazin-8-yl]-amino}benzoic acid ethyl ester
959756-25-3

3-{tert-butoxycarbonyl-[5-(1H-pyrazol-4-yl)-[1,2,4]triazolo[1,5-a]pyrazin-8-yl]-amino}benzoic acid ethyl ester

Conditions
ConditionsYield
With potassium carbonate; dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 In 1,4-dioxane; water at 115℃; for 0.416667h;100%
glycidyl methyl ether
930-37-0

glycidyl methyl ether

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

1-methoxy-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-2-ol
1000801-77-3

1-methoxy-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-2-ol

Conditions
ConditionsYield
at 98℃; for 4h;100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

3-(cyanomethylene)azetidine-1-carboxylic acid tert-butyl ester
1153949-11-1

3-(cyanomethylene)azetidine-1-carboxylic acid tert-butyl ester

tert-butyl 3-(cyanomethyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)azetidine-1-carboxylate
1153949-15-5

tert-butyl 3-(cyanomethyl)-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)azetidine-1-carboxylate

Conditions
ConditionsYield
With 1,8-diazabicyclo[5.4.0]undec-7-ene In acetonitrile at 50℃;100%
With 1,8-diazabicyclo[5.4.0]undec-7-ene In isopropyl alcohol Reflux; Inert atmosphere;90.5%
With 1,8-diazabicyclo[5.4.0]undec-7-ene In isopropyl alcohol Reflux;90.5%
2-iodo-propane
75-30-9

2-iodo-propane

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

1-isopropylpyrazole-4-boronic acid pinacol ester
879487-10-2

1-isopropylpyrazole-4-boronic acid pinacol ester

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 90℃; for 16h; Inert atmosphere;100%
With caesium carbonate In N,N-dimethyl-formamide at 90℃; for 16h;61.72%
With caesium carbonate In N,N-dimethyl-formamide at 0 - 20℃;57%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

3-{[tert-butyl(dimethyl)silyl]oxy}-2-fluoropropyltrifluoromethanesulfonate
1182357-90-9

3-{[tert-butyl(dimethyl)silyl]oxy}-2-fluoropropyltrifluoromethanesulfonate

(3-{[tert-butyl(dimethyl)silyl]oxy}-2-fluoropropyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1309960-93-7

(3-{[tert-butyl(dimethyl)silyl]oxy}-2-fluoropropyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
Stage #1: pyrazole-4-boronic acid pinacol ester With sodium hydride In N,N-dimethyl-formamide; mineral oil at 20℃; for 0.5h; Inert atmosphere;
Stage #2: 3-{[tert-butyl(dimethyl)silyl]oxy}-2-fluoropropyltrifluoromethanesulfonate In N,N-dimethyl-formamide; mineral oil for 0.333333h; Inert atmosphere;
100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

2-chloroethyl methyl ether
627-42-9

2-chloroethyl methyl ether

1-(2-methoxyethyl)-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole
847818-71-7

1-(2-methoxyethyl)-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 160℃; for 0.5h; Microwave irradiation;100%
With caesium carbonate In N,N-dimethyl-formamide at 160℃; for 0.5h; Microwave irradiation;100%
With caesium carbonate In N,N-dimethyl-formamide at 160℃; for 0.5h; microwave irradiation;72%
With caesium carbonate In N,N-dimethyl-formamide at 160℃; for 0.5h; Microwave irradiation;72%
bromoacetopyrrolidine
90892-09-4

bromoacetopyrrolidine

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

1-(pyrrolidin-1-yl)-2-(4-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-1H-pyrazol-1-yl)ethan-1-one
1534350-51-0

1-(pyrrolidin-1-yl)-2-(4-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)-1H-pyrazol-1-yl)ethan-1-one

Conditions
ConditionsYield
In acetonitrile at 20℃;100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

2-(2,2,2-trifluoroethyl)oxirane
407-12-5

2-(2,2,2-trifluoroethyl)oxirane

4,4,4-trifluoro-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butan-2-ol

4,4,4-trifluoro-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butan-2-ol

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 80℃;100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

(2R,5R)-tert-butyl 5-methyl-2-(((methylsulfonyl)oxy)methyl)morpholine-4-carboxylate

(2R,5R)-tert-butyl 5-methyl-2-(((methylsulfonyl)oxy)methyl)morpholine-4-carboxylate

tert-butyl (2R,5R)-5-methyl-2-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)morpholine-4-carboxylate

tert-butyl (2R,5R)-5-methyl-2-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)morpholine-4-carboxylate

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 20℃; for 24h;100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

tert-butyl ((1S,3S,4R)-3-benzyl-4-(3-(hydroxymethyl)phenoxy)cyclopentyl)carbamate

tert-butyl ((1S,3S,4R)-3-benzyl-4-(3-(hydroxymethyl)phenoxy)cyclopentyl)carbamate

tert-butyl ((1S,3S,4R)-3-benzyl-4-(3-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)phenoxy)cyclopentyl)carbamate

tert-butyl ((1S,3S,4R)-3-benzyl-4-(3-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)phenoxy)cyclopentyl)carbamate

Conditions
ConditionsYield
With tributylphosphine; diamide In toluene at 20℃; Mitsunobu Displacement; Sonication;100%
With tributylphosphine; diamide In toluene at 20℃; Inert atmosphere;100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

3-hydroxylmethyl oxetane

3-hydroxylmethyl oxetane

1-(oxetan-3-ylmethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1578484-07-7

1-(oxetan-3-ylmethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
With cyanomethylenetributyl-phosphorane In 1,4-dioxane at 150℃; for 0.75h; Microwave irradiation;100%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

di-tert-butyl dicarbonate
24424-99-5

di-tert-butyl dicarbonate

tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate
552846-17-0

tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazole-1-carboxylate

Conditions
ConditionsYield
With dmap In N,N-dimethyl-formamide at 0 - 20℃;99%
With dmap; N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃;99.68%
With dmap In dichloromethane at 20℃; for 4h;85%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

1-Bromo-2-chloroethane
107-04-0

1-Bromo-2-chloroethane

1-(2-chloroethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
877149-79-6

1-(2-chloroethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
With caesium carbonate In acetonitrile at 70℃; for 6h;99%
With caesium carbonate In acetonitrile at 62℃; for 4h;90%
With caesium carbonate In acetonitrile at 75℃; for 5h;88%
With caesium carbonate In acetonitrile at 75℃; for 5h;
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

4-(bromomethyl)-1-methyl-1H-pyrazole hydrobromide

4-(bromomethyl)-1-methyl-1H-pyrazole hydrobromide

1-methyl-4-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)-1H-pyrazole

1-methyl-4-((4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)methyl)-1H-pyrazole

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 60℃; for 1h;99%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

2-nitrophenyl bromide
577-19-5

2-nitrophenyl bromide

4-(2-nitrophenyl)pyrazole

4-(2-nitrophenyl)pyrazole

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; tetrabutylammomium bromide; potassium carbonate In N,N-dimethyl-formamide98.5%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

bromobenzene
108-86-1

bromobenzene

4-phenyl-1H-pyrazole
10199-68-5

4-phenyl-1H-pyrazole

Conditions
ConditionsYield
With tetrabutylammomium bromide; potassium carbonate; palladium dichloride In N,N-dimethyl-formamide at 130℃; for 16h; Inert atmosphere;98%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

tert-butyl (3-bromo-1-((1s,4s)-4-((1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)cyclohexyl)-1H-pyrazolo[4,3-c]pyridin-6-yl)(methyl)carbamate

tert-butyl (3-bromo-1-((1s,4s)-4-((1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)cyclohexyl)-1H-pyrazolo[4,3-c]pyridin-6-yl)(methyl)carbamate

tert-butyl methyl(1-((1s,4s)-4-((1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)cyclohexyl)-3-(1H-pyrazol-4-yl)-1H-pyrazolo[4,3-c]pyridin-6-yl)carbamate

tert-butyl methyl(1-((1s,4s)-4-((1-methyl-6-oxo-1,6-dihydropyridazin-3-yl)oxy)cyclohexyl)-3-(1H-pyrazol-4-yl)-1H-pyrazolo[4,3-c]pyridin-6-yl)carbamate

Conditions
ConditionsYield
With tetrakis(triphenylphosphine) palladium(0); sodium carbonate In 1,4-dioxane at 90℃; for 12h; Inert atmosphere; Sealed tube;98%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

ethyl vinyl ether
109-92-2

ethyl vinyl ether

1-(1-ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1029716-44-6

1-(1-ethoxyethyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
Stage #1: pyrazole-4-boronic acid pinacol ester; ethyl vinyl ether With hydrogenchloride In 1,4-dioxane; toluene at 35 - 40℃; Inert atmosphere;
Stage #2: With sodium hydrogencarbonate In 1,4-dioxane; toluene for 1h; Product distribution / selectivity;
97.3%
With hydrogenchloride In 1,4-dioxane; toluene at 35℃; Inert atmosphere;90%
In toluene at 35℃; for 13h; Inert atmosphere;
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

Methyl 2-bromobutyrate
3196-15-4, 69043-96-5

Methyl 2-bromobutyrate

methyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butanoate

methyl 2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butanoate

Conditions
ConditionsYield
With caesium carbonate In Petroleum ether97%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

(2-chloroethyl)dimethylamine hydrochloride
4584-46-7

(2-chloroethyl)dimethylamine hydrochloride

N,N-dimethyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)ethan-1-amine
877149-80-9

N,N-dimethyl-2-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)ethan-1-amine

Conditions
ConditionsYield
With caesium carbonate In acetonitrile for 5h; Reflux;95%
With caesium carbonate In acetonitrile at 90℃;88%
With caesium carbonate In N,N-dimethyl-formamide at 0 - 20℃; for 72.5h;66%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

ethyl 3-(2-(((trifluoromethyl)sulfonyl)oxy)naphthalene-1-yl)propanoate
1417620-53-1

ethyl 3-(2-(((trifluoromethyl)sulfonyl)oxy)naphthalene-1-yl)propanoate

ethyl 3-(2-(1H-pyrazol-4-yl)naphthalen-1-yl)propanoate
1426148-40-4

ethyl 3-(2-(1H-pyrazol-4-yl)naphthalen-1-yl)propanoate

Conditions
ConditionsYield
With bis-triphenylphosphine-palladium(II) chloride; sodium carbonate In 1,4-dioxane for 4h; Suzuki-Miyaura Coupling; Reflux;95%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

8-bromo-N-tert-butyl-1-(3,5-dichlorophenyl)-7-methoxy-N-methyl-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxamide

8-bromo-N-tert-butyl-1-(3,5-dichlorophenyl)-7-methoxy-N-methyl-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxamide

N-tert-butyl-1-(3,5-dichlorophenyl)-7-methoxy-N-methyl-8-(1H-pyrazol-4-yl)-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxamide

N-tert-butyl-1-(3,5-dichlorophenyl)-7-methoxy-N-methyl-8-(1H-pyrazol-4-yl)-1,4-dihydrochromeno[4,3-c]pyrazole-3-carboxamide

Conditions
ConditionsYield
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; caesium carbonate In 1,4-dioxane; water at 90℃; for 1h; Inert atmosphere; Microwave irradiation;95%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

allyl bromide
106-95-6

allyl bromide

1-allyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1000801-78-4

1-allyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
With sodium hexamethyldisilazane In tetrahydrofuran at 70℃;94%
With caesium carbonate In N,N-dimethyl-formamide at 100℃; for 1h; Microwave irradiation;39%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

2-(bromomethyl)benzonitrile
22115-41-9

2-(bromomethyl)benzonitrile

C17H20BN3O2
930596-18-2

C17H20BN3O2

Conditions
ConditionsYield
With potassium carbonate In acetonitrile for 72h; Heating / reflux;94%
3,4-dihydro-2H-pyran
110-87-2

3,4-dihydro-2H-pyran

pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

1-(tetrahydro-2H-pyran-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1003846-21-6

1-(tetrahydro-2H-pyran-2-yl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
With trifluoroacetic acid In toluene at 90℃; for 2h;94%
With toluene-4-sulfonic acid In dichloromethane at 20℃; for 4h;90%
With toluene-4-sulfonic acid In dichloromethane at 20℃; for 4h;90%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

p-methoxybenzyl chloride
824-94-2

p-methoxybenzyl chloride

1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole
1105039-88-0

1-(4-methoxybenzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole

Conditions
ConditionsYield
With potassium carbonate In acetonitrile at 80℃; for 5h;94%
With potassium carbonate In acetonitrile at 80℃; for 5h;91%
With potassium carbonate In acetonitrile at 60℃; for 15h;73.3%
With potassium carbonate In acetonitrile at 80℃; for 5h;
With caesium carbonate In acetonitrile for 4h; Reflux;
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

3-chloro-2-methylpropan-2-ol
558-42-9

3-chloro-2-methylpropan-2-ol

2-methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-2-ol

2-methyl-1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)propan-2-ol

Conditions
ConditionsYield
With caesium carbonate In N,N-dimethyl-formamide at 160℃; for 2.5h; Microwave irradiation;94%
pyrazole-4-boronic acid pinacol ester
269410-08-4

pyrazole-4-boronic acid pinacol ester

tert-butyl (S)-3-((4-((1R,3R)-3-methyl-2-(2,2,2-trifluoroethyl)-6-(trifluoromethanesulfonyloxy)-1,2,3,4-tetrahydroisoquinolin-1-yl)phenyl)amino)pyrrolidin-1-carboxylate

tert-butyl (S)-3-((4-((1R,3R)-3-methyl-2-(2,2,2-trifluoroethyl)-6-(trifluoromethanesulfonyloxy)-1,2,3,4-tetrahydroisoquinolin-1-yl)phenyl)amino)pyrrolidin-1-carboxylate

tert-butyl (S)-3-((4-((1R,3R)-3-methyl-6-(1H-pyrazol-4-yl)-2-(2,2,2-trifluoroethyl)-1,2,3,4-tetrahydroisoquinolin-1-yl)phenyl)amino)pyrrolidin-1-carboxylate

tert-butyl (S)-3-((4-((1R,3R)-3-methyl-6-(1H-pyrazol-4-yl)-2-(2,2,2-trifluoroethyl)-1,2,3,4-tetrahydroisoquinolin-1-yl)phenyl)amino)pyrrolidin-1-carboxylate

Conditions
ConditionsYield
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; sodium carbonate In 1,4-dioxane; water at 80℃; for 16h; Inert atmosphere;94%

269410-08-4Relevant articles and documents

Efficient salt-induced kinase inhibitor and preparation method thereof

-

Paragraph 0041; 0054; 0055, (2021/09/04)

The invention discloses an efficient salt-induced kinase inhibitor and a preparation method thereof, and the efficient salt-induced kinase inhibitor is characterized by comprising substances of a chemical formula in the invention. The salt-induced kinase inhibitor with excellent performance has high inhibitory activity for in-vitro experiments and also has high cell inhibitory activity.

PHD INHIBITOR COMPOUNDS, COMPOSITIONS, AND USE

-

Paragraph 0781-0782, (2021/09/26)

The present invention provides, in part, novel small molecule inhibitors of PHD, having a structure according to Formula (A), and sub-formulas thereof: or a pharmaceutically acceptable salt thereof. The compounds provided herein can be useful for treatment of diseases including heart ( e.g. ischemic heart disease, congestive heart failure, and valvular heart disease), lung (e.g., acute lung injury, pulmonary hypertension, pulmonary fibrosis, and chronic obstructive pulmonary disease), liver (e.g. acute liver failure and liver fibrosis and cirrhosis), and kidney (e.g. acute kidney injury and chronic kidney disease) disease.

Design, synthesis and biological evaluation of pyrazolo[3,4-d]pyrimidine-based protein kinase D inhibitors

Gilles, Philippe,Kashyap, Rudra S.,Freitas, Maria Jo?o,Ceusters, Sam,Van Asch, Koen,Janssens, Anke,De Jonghe, Steven,Persoons, Leentje,Cobbaut, Mathias,Daelemans, Dirk,Van Lint, Johan,Voet, Arnout R.D.,De Borggraeve, Wim M.

supporting information, (2020/08/25)

The multiple roles of protein kinase D (PKD) in various cancer hallmarks have been repeatedly reported. Therefore, the search for novel PKD inhibitors and their evaluation as antitumor agents has gained considerable attention. In this work, novel pyrazolo[3,4-d]pyrimidine based pan-PKD inhibitors with structural variety at position 1 were synthesized and evaluated for biological activity. Starting from 3-IN-PP1, a known PKD inhibitor with IC50 values in the range of 94–108 nM, compound 17m was identified with an improved biochemical inhibitory activity against PKD (IC50 = 17–35 nM). Subsequent cellular assays demonstrated that 3-IN-PP1 and 17m inhibited PKD-dependent cortactin phosphorylation. Furthermore, 3-IN-PP1 displayed potent anti-proliferative activity against PANC-1 cells. Finally, a screening against different cancer cell lines demonstrated that 3-IN-PP1 is a potent and versatile antitumoral agent.

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