Water → 2,2-Diethyl-4-[6-(3-fluoro-4-hydroxy-phenyl)-3-methyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-ylmethyl]-5,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester

HRID 2279123Notes

Reaction equation

HRID 2279123 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][C:12]([CH3:15])([CH3:14])[N:11]([CH2:16][C:17]2[CH:22]=[C:21](Br)[N:20]=[C:19]3[N:24]([CH:28]4[CH2:33][CH2:32][CH2:31][CH2:30][O:29]4)[N:25]=[C:26]([CH3:27])[C:18]=23)[CH2:10][C:9]1([CH2:36][CH3:37])[CH2:34][CH3:35])=[O:7])([CH3:4])([CH3:3])[CH3:2].[F:38][C:39]1[CH:40]=[C:41](B(O)O)[CH:42]=[CH:43][C:44]=1[OH:45].O.C(=O)([O-])[O-].[K+].[K+]>C(OCC)(=O)C.CC(C)([P](C(C)(C)C)([Pd][P](C(C)(C)C)(C(C)(C)C)C(C)(C)C)C(C)(C)C)C>[C:1]([O:5][C:6]([N:8]1[CH2:13][C:12]([CH3:15])([CH3:14])[N:11]([CH2:16][C:17]2[CH:22]=[C:21]([C:41]3[CH:42]=[CH:43][C:44]([OH:45])=[C:39]([F:38])[CH:40]=3)[N:20]=[C:19]3[N:24]([CH:28]4[CH2:33][CH2:32][CH2:31][CH2:30][O:29]4)[N:25]=[C:26]([CH3:27])[C:18]=23)[CH2:10][C:9]1([CH2:36][CH3:37])[CH2:34][CH3:35])=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 23005361(3-Fluoro-4-hydroxyphenyl)boronic acidHCID 900140904-[6-Bromo-3-methyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-ylmethyl]-2,2-diethyl-5,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester

Product 1

HCID 1366232462,2-Diethyl-4-[6-(3-fluoro-4-hydroxy-phenyl)-3-methyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-ylmethyl]-5,5-dimethyl-piperazine-1-carboxylic acid tert-butyl esterYield 34%

Reagents, catalysts & solvents 2

HCID 178418851HCID 178418851, compoundCatalystHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

To a solution of 150 mg 4-[6-Bromo-3-methyl-1-(tetrahydro-pyran-2-yl)-1H-pyrazolo[3,4-b]pyridin-4-ylmethyl]-2,2-diethyl-5,5-dimethyl-piperazine-1-carboxylic acid tert-butyl ester and 48 mg 3-fluoro-4-hydroxy-phenylboronic acid in 8 ml of DEM and 0.45 ml of water were added 40 mg of potassium carbonate. To the degassed reaction mixture 4 mg of bis(tri-tert-butyl-phosphin)palladium(0) were added. The reaction was heated to 120° C. in a microwave reactor for 2 h. The mixture was diluted with ethyl acetate and washed with water. The aqueous phase was extracted with ethyl acetate twice. The combined organic layers were dried and concentrated in vacuo. The resulting residue was purified by HPLC. 53 mg (34%) of the title compound were obtained.

Workup

  1. additionwere added
  2. washwashed with water
  3. extractionThe aqueous phase was extracted with ethyl acetate twice
  4. customThe combined organic layers were dried
  5. concentrationconcentrated in vacuo
  6. customThe resulting residue was purified by HPLC

Sources & evidence

ORD record
ord-0693a5f240374358bac95c4aa82bff6c
Source dataset
uspto-grants-2015_09
Patent number
US09133181B2

Reaction notes

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