Ethyl chloroformate → HCID 15392211, compound

Participants

Reaction Steps

7-[[4-[(1-t-Butoxycarbonyl-4-piperidyl)oxy]anilino]methyl]-2-naphthalenecarbonitrile obtained in Reference Example 2 (150 mg) was dissolved in 2 ml of dimethylformamide, 178 mg of ethyl chloroformate and 271 mg of potassium carbonate were added to the solution, and the mixture was stirred at room temperature for 3.5 hours. The reaction solution was evaporated, and the resulting residue was purified by silica gel column chromatography using ethyl acetate:hexane (2:8) as the eluent to give 169 mg of ethyl N-[4-[(1-t-butoxycarbonyl-4-piperidyl)oxy]phenyl]-N-[(7-cyano-2-naphthyl)methyl]carbamate.

Provenance & Evidence