Acetyl chloride → N-[2-(3,4-Dichlorophenyl)-4-[4-(N-phenylacetamido)piperidino]butyl]-N-methylbenzamide

Participants

Reaction Steps

To a flask containing methanol (0.5 mL) at 0° C. was added acetyl chloride (0.085 mL), and the resulting solution was allowed to stir for 20 minutes. 4-(N-Phenylacetamido)piperidine (0.327 g) in methanol (1 mL) was added, followed by N-[2-(3,4-dichlorophenyl)-4-oxobutyl]-N-methylbenzamide (0.350 g) in methanol (2.5 mL) and, 15 minutes later, sodium cyanoborohydride (0.038 g). After being stirred at room temperature for 4 hours, the reaction mixture was diluted with water and extracted with dichloromethane. The organic extracts were washed (water), dried, and evaporated. The resulting material was chromatographed, with ethyl acetate:methanol (5:1) as the eluent, to give the title compound (0.253 g) as a white solid; MS: m/z=552(M+1). Analysis for C31H35Cl2N3O2 ·0.8 H2O: Calculated: C, 65.67; H, 6.51; N, 7.41; Found: C, 65.76; H, 6.37; N, 7.48.

Provenance & Evidence