Sodium Methoxide → 5-(2-Methoxypyrimidin-4-yl)-6-(3-trifluoromethylphenyl)-1H-pyrazolo[3,4-b]pyridine

HRID 2376770Notes

Reaction equation

CS([C:5]1[N:10]=[C:9]([C:11]2[CH:12]=[C:13]3[CH:29]=[N:28][NH:27][C:14]3=[N:15][C:16]=2[C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([C:23]([F:26])([F:25])[F:24])[CH:18]=2)[CH:8]=[CH:7][N:6]=1)(=O)=O.[CH3:30][O-:31].[Na+]>CO>[CH3:30][O:31][C:5]1[N:10]=[C:9]([C:11]2[CH:12]=[C:13]3[CH:29]=[N:28][NH:27][C:14]3=[N:15][C:16]=2[C:17]2[CH:22]=[CH:21][CH:20]=[C:19]([C:23]([F:26])([F:25])[F:24])[CH:18]=2)[CH:8]=[CH:7][N:6]=1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of 5-[2-(methylsulfonyl)pyrimidin-4-yl]-6-[3-(trifluoromethyl)phenyl]-1H-pyrazolo[3,4-b]pyridine (90 mg, 0.2 mmol, obtained in example 127) in MeOH (5 mL) in a closed vessel, sodium methoxide (11 mg, 0.2 mmol) was added and heated to 60° C. for 24 h. Then, sodium methoxide (11 mg, 0.2 mmol) was added and it was stirred at 60° C. for 2 h more. It was allowed to cool and was concentrated. EtOAc and buffer (pH=5.3) were added. The phases were separated and the organic phase was washed with water, dried over Na2SO4 and concentrated to dryness. The crude product obtained was purified by chromatography on silica gel using hexane-EtOAc mixtures at 50%, to afford 38 mg of the title compound (yield: 47%)

Workup

temperatureto cool
concentrationwas concentrated
additionEtOAc and buffer (pH=5.3) were added
customThe phases were separated
washthe organic phase was washed with water
dry with materialdried over Na2SO4
concentrationconcentrated to dryness
customThe crude product obtained
customwas purified by chromatography on silica gel

Sources & evidence

ORD record: ord-b77232b986e04ca48d18869559d1b537
Source dataset: uspto-grants-2008_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07468376B2

Reaction notes

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