反应详情

Prepared from ethyl 2ethoxy-4-[N-{1-(2-piperidino-phenyl)-3-methyl-1-buten-1-yl}-aminocarbonylmethyl]-benzoate, melting point 125°-126° C., which in turn was prepared from (2-piperidino-phenyl)-isobutyl-ketimine and 3-ethoxy-4-ethoxy-carbonyl-phenyl-acetic acid analogous to Example 1.