Ammonium formate → HCID 19030791, compound

Participants

Reaction Steps

A mixture of 1-[1-{4-[3-(N-benzyl-N-methylamino)-propoxy] benzoyl}-4-piperidinyl]-3,4-dihydrocarbostyril (5.3 g), 5% palladium-carbon (0.8 g), ammonium formate (2.6 g) and ethanol (300 ml) is refluxed with heating for 2 hours. The catalyst is filtered off and ethanol is distilled off under reduced pressure. To the residue is added chloroform and the mixture is washed successively with saturated sodium hydrogen carbonate, water and saline solution. Further the mixture is dried with sodium sulfate and the solvent is distilled off. The resulting residue is purified by silica gel column chromatography (solvent: dichloromethane:methanol=20:1→5:1) to give 1-[1-{4-[3-(N-methylamino)propoxy]benzoyl}-4-piperidinyl]-3,4-dihydrocarbostyril (4.37 g).

Provenance & Evidence