Water → (3-(1-cyclopentyl-4-oxo-4,5-dihydro-1H-pyrazolo[4,3-c]pyridin-3-yl)phenyl)acetonitrile

HRID 2206133Notes

Reaction equation

[CH:1]1([N:6]2[C:14]3[CH:13]=[CH:12][N:11]=[C:10]([O:15]C)[C:9]=3[C:8]([C:17]3[CH:18]=[C:19]([CH2:23][C:24]#[N:25])[CH:20]=[CH:21][CH:22]=3)=[N:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1.[I-].[Na+].Cl[Si](C)(C)C.O>C(#N)C>[CH:1]1([N:6]2[C:14]3[CH:13]=[CH:12][NH:11][C:10](=[O:15])[C:9]=3[C:8]([C:17]3[CH:18]=[C:19]([CH2:23][C:24]#[N:25])[CH:20]=[CH:21][CH:22]=3)=[N:7]2)[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

Conditions

Temperature: 60 °C

Procedure

To a solution of (3-(1-cyclopentyl-4-methoxy-1H-pyrazolo[4,3-c]pyridin-3-yl)phenyl)acetonitrile (120 mg) in acetonitrile (10 mL) were added sodium iodide (108 mg) and chloro(trimethyl)silane (0.366 mL), and the mixture was stirred at 60° C. for 30 min. To the reaction mixture was added water, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane), and the obtained solid was washed with ethyl acetate to give the title compound (105 mg).

Workup

extractionthe mixture was extracted with ethyl acetate
washThe organic layer was washed with saturated brine
dry with materialdried over anhydrous sodium sulfate
concentrationconcentrated under reduced pressure
customThe residue was purified by silica gel column chromatography (ethyl acetate/hexane)
washthe obtained solid was washed with ethyl acetate

Sources & evidence

ORD record: ord-722e68bfdecf495a8475fe506687e6e9
Source dataset: uspto-grants-2016_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09371320B2

Reaction notes

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