Water → HCID 15485217, compound

Participants

Reaction Steps

To a solution of N-[2-(4-n-butyl-1-piperazinyl)-ethyl]-1-n-propylindazole-3-carboxamide (0.36 g) obtained in Example 3 in THF (5 ml) was added lithium aluminum hydride (0.11 g) at room temperature, and the mixture was heated under reflux for 3 hours. The reaction solution was ice-cooled, and were successively added water (0.1 ml), a 15% aqueous sodium hydroxide (0.1 ml), water (0.3 ml) and THF (10 ml). After the reaction solution was stirred at room temperature for 30 minutes, the insolubles were filtered off with Celite. The filtrate was distilled off under reduced pressure, and the residue was purified by thin-layer chromatography on silica gel (chloroform:methanol:aqueous ammonia=8:2:0.2) to give the title compound (0.14 g) as a pale yellow oily substance. Yield=40%.

Provenance & Evidence