Hydrochloric Acid → HCID 18472660, compound

Participants

Reaction Steps

In methanol (100 ml) and ethyl acetate (150 ml) was dissolved N-(4—(1—(tert-butoxycarbonyl)piperidin-2-ylcarbonyl)phenyl)-7—(4-methylphenyl)-2,3-dihydro-1-benzoxepine-4-carboxamide (1.0 g), and to the mixture was added hydrochloric acid (17 ml). The mixture was stirred at room temperature for 2 hours, concentrated and neutralized with sodium hydrogen carbonate solution. The mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated sodium chloride solution, and dried with anhydrous magnesium sulfate. Under reduced pressure, the solvent was evaporated to give crude crystals, which were recrystallized from ethanol-ethyl acetate-hexane to give N-(4—(piperidin-2-ylcarbonyl)phenyl)-7—(4-methylphenyl)-2,3-dihydro-1-benzoxepine-4-carboxamide (Compound 156) (0.6 g) as colorless crystals.

Provenance & Evidence