Ammonia → 4-(4-Fluorophenyl)-5-[2-[4-[(3-fluorophenyl)methylidene]piperidin-1-yl]ethyl]-1,3-thiazole-2-carboxamide

Participants

Reaction Steps

315 mg of 2-ethoxycarbonyl-4-(4-fluorophenyl)-5-[2-[4-(3-fluorobenzylidene)piperidin-1-yl]ethyl]thiazole and 0.05 ml of 28% aqueous ammonia were stirred in 1.5 ml of ethanol for 3 days. To the mixture was added 0.50 ml of 28% aqueous ammonia to carry out additional 3 days of reaction. The reaction solution was concentrated under reduced pressure, and the resulting residue was purified by a flash column chromatography (Wako Gel C200 (manufactured by Wako Pure Chemical Industries), eluant: hexane-ethyl acetate=3:1-1:1) and recrystallized from ethanol to obtain 201 mg of 2-carbamoyl-4-(4-fluorophenyl)-5-[2-[4-(3-fluorobenzylidene)piperidin-1-yl]ethyl]thiazole.

Provenance & Evidence