4-(2-Cyano-phenyl)-2-diethoxymethyl-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 5-[2-(benzyl-methyl-amino)-ethyl] ester 3-ethyl ester 在
盐酸 作用下,
以
丙酮 为溶剂,
反应 1.5h,
以80.4%的产率得到4-(2-Cyano-phenyl)-2-formyl-6-methyl-1,4-dihydro-pyridine-3,5-dicarboxylic acid 5-[2-(benzyl-methyl-amino)-ethyl] ester 3-ethyl ester