To a solution of N-[2-(3,4-dichlorophenyl)-4-(tetrahydropyran-2-yloxy)butyl]-N-methylbenzamide (10.5 g) in tetrahydrofuran (100 mL) was added 6N hydrochloric acid (50 mL), and the resulting solution was allowed to stir overnight. The mixture was neutralized with 10N sodium hydroxide, diluted with water, and extracted with dichloromethane. The organic layer was dried and evaporated. The resulting yellow solid was suspended in ether and filtered to give the alcohol as a white solid (8.4 g); MS: m/z=352(M+1).
