Sodium Carbonate → tert-Butyl 3-{3-[1-(4-amino-3-vinyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-6-fluoro-2-methoxyphenyl}azetidine-1-carboxylate

HRID 1499751Notes

Reaction equation

HRID 1499751 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[C:15]([O:33][CH3:34])=[C:16]([CH:22]4[CH2:25][N:24]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:23]4)[C:17]([F:21])=[C:18]([Cl:20])[CH:19]=3)[CH3:13])[N:9]=[C:10](I)[C:3]=12.[CH3:35][C:36]1(C)C(C)(C)OB(C=C)O1.C(=O)([O-])[O-].[Na+].[Na+]>CN(C)C=O.O.[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH:12]([C:14]3[C:15]([O:33][CH3:34])=[C:16]([CH:22]4[CH2:25][N:24]([C:26]([O:28][C:29]([CH3:32])([CH3:31])[CH3:30])=[O:27])[CH2:23]4)[C:17]([F:21])=[C:18]([Cl:20])[CH:19]=3)[CH3:13])[N:9]=[C:10]([CH:35]=[CH2:36])[C:3]=12

Participants

7

Reactant 3

HCID 10340Sodium CarbonateHCID 52330122-Ethenyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolaneHCID 86677679tert-Butyl 3-{3-[1-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-6-fluoro-2-methoxyphenyl}azetidine-1-carboxylate

Product 1

HCID 86677680tert-Butyl 3-{3-[1-(4-amino-3-vinyl-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-6-fluoro-2-methoxyphenyl}azetidine-1-carboxylateYield 74.3%

Reagents, catalysts & solvents 3

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 962WaterSolvent2×HCID 6228DimethylformamideSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of tert-butyl 3-{3-[1-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl]-5-chloro-6-fluoro-2-methoxyphenyl}azetidine-1-carboxylate (0.55 g, 0.91 mmol), 4,4,5,5-tetramethyl-2-vinyl-1,3,2-dioxaborolane (0.281 g, 1.82 mmol), sodium carbonate (0.580 g, 5.47 mmol) in N,N-dimethylformamide (5 mL)/water (2.73 mL) under N2 was added tetrakis(triphenylphosphine)-palladium(0) (0.105 g, 0.0910 mmol). The mixture was heated at 100° C. overnight. After cooling to room temperature, the mixture was diluted with water, and extracted with EtOAc. The combined organic layers were concentrated and purified on silica gel (eluting with 0 to 100% EtOAc in hexanes followed by 0 to 10% MeOH in dichloromethane) to give the desired product (0.34 g, 74%). LCMS calculated for C24H29ClFN6O3 (M+H)+: m/z=503.2; Found: 503.1.

Workup

  1. temperatureAfter cooling to room temperature
  2. extractionextracted with EtOAc
  3. concentrationThe combined organic layers were concentrated
  4. custompurified on silica gel (eluting with 0 to 100% EtOAc in hexanes followed by 0 to 10% MeOH in dichloromethane)

Sources & evidence

ORD record
ord-f3238f75525a419fb23123bf547119ca
Source dataset
uspto-grants-2015_12
Patent number
US09199982B2

Reaction notes

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