反应详情

A mixture of (2-ethyl-8-methylfuro[3,2-c]pyrazolo[1,5-a]pyridin-1-yl)acetonitrile (232 mg, 0.970 mmol), Raney cobalt (2.3 g) and 2M ammonia/ethanol solution (20 mL) was stirred at room temperature for 16 hr under a hydrogen atmosphere. The catalyst was filtered through celite, and the filtrate was concentrated under reduced pressure to give the title compound (225 mg, yield 95%).

1. filtrationThe catalyst was filtered through celite
2. concentrationthe filtrate was concentrated under reduced pressure