反应详情

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0 °C

2-(2-((tert-butyldimethylsilyl)oxy)-1-ethoxyethyl)-4-(5-chloropyridin-3-yl)-3-((trans-4-methylcyclohexyl)methyl)-3H-imidazo[4,5-c]pyridine-6-carbonitrile was dissolved in THF (3.9 mL) and cooled to 0° C. before adding TBAF (1M in THF, 1.5 mL). After stirring at 0° C. for 25 minutes, the reaction mixture was diluted with ethyl acetate and washed with water followed by brine. The organic layer was dried over sodium sulfate, filtered, and concentrated. The residue was purified by silica gel chromatography (DCM/0-10% MeOH) to afford 4-(5-chloropyridin-3-yl)-2-(1-ethoxy-2-hydroxyethyl)-3-((trans-4-methylcyclohexyl)methyl)-3H-imidazo[4,5-c]pyridine-6-carbonitrile. MS ESI calc'd. for C24H28ClN5O2 [M+H]+ 454. found 454.

1. washwashed with water
2. dry with materialThe organic layer was dried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated
5. customThe residue was purified by silica gel chromatography (DCM/0-10% MeOH)