Potassium Carbonate → tert-butyl N-[(1R)-2-[4-amino-3-(2-fluoro-4-phenoxy-phenyl)pyrazolo[3,4-d]pyrimidin-1-yl]-1-methyl-ethyl]carbamate

HRID 1851063Notes

Reaction equation

HRID 1851063 reaction equation
[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH2:12][C@H:13]([NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH3:14])[N:9]=[C:10](I)[C:3]=12.[F:23][C:24]1[CH:29]=[C:28]([O:30][C:31]2[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=2)[CH:27]=[CH:26][C:25]=1B(O)O.C([O-])([O-])=O.[K+].[K+].O1CCOCC1>C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.O>[NH2:1][C:2]1[N:7]=[CH:6][N:5]=[C:4]2[N:8]([CH2:12][C@H:13]([NH:15][C:16](=[O:22])[O:17][C:18]([CH3:21])([CH3:20])[CH3:19])[CH3:14])[N:9]=[C:10]([C:25]3[CH:26]=[CH:27][C:28]([O:30][C:31]4[CH:36]=[CH:35][CH:34]=[CH:33][CH:32]=4)=[CH:29][C:24]=3[F:23])[C:3]=12

Participants

8

Reactant 4

HCID 11430Potassium CarbonateHCID 312751,4-DioxaneHCID 71014093B-(2-Fluoro-4-phenoxyphenyl)boronic acidHCID 86714553tert-butyl N-[(1R)-2-(4-amino-3-iodo-pyrazolo[3,4-d]pyrimidin-1-yl)-1-methyl-ethyl]carbamate

Product 1

HCID 86714554tert-butyl N-[(1R)-2-[4-amino-3-(2-fluoro-4-phenoxy-phenyl)pyrazolo[3,4-d]pyrimidin-1-yl]-1-methyl-ethyl]carbamateYield 130.5%

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
140 °C

Procedure

To a microwave tube was added tert-butyl N-[(1R)-2-(4-amino-3-iodo-pyrazolo[3,4-d]pyrimidin-1-yl)-1-methyl-ethyl]carbamate (1.7 g, 4.1 mmol), (2-fluoro-4-phenoxy-phenyl)boronic acid (1.4 g, 6.1 mmol), K2CO3 (1.27 g, 9.2 mmol), and tetrakis(triphenylphosphine)palladium(0) (213 mg, 0.18 mmol) and 1,4-dioxane (12 mL) and water (3 mL). The mixture was capped and heated under microwave conditions for 140° C. for 10 minutes. The reaction was cooled and diluted with ethyl acetate (50 mL) and washed with water (50 mL) and brine. The organic layer was dried (MgSO4), filtered and evaporated to obtain 2.56 g of crude tert-butyl N-[(1R)-2-[4-amino-3-(2-fluoro-4-phenoxy-phenyl)pyrazolo[3,4-d]pyrimidin-1-yl]-1-methyl-ethyl]carbamate. This was used in the next step without further purification.

Workup

  1. customThe mixture was capped
  2. temperatureThe reaction was cooled
  3. washwashed with water (50 mL) and brine
  4. dry with materialThe organic layer was dried (MgSO4)
  5. filtrationfiltered
  6. customevaporated

Sources & evidence

ORD record
ord-c666367fb94d4ca1906bbbf394798d28
Source dataset
uspto-grants-2015_02
Patent number
US08957080B2

Reaction notes

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