3-氯苯甲醛 、
ethyl 3-amino-3-ethoxypropenoate 以
异丙醇 为溶剂,
反应 8.0h,
以2-amino-4-(3-chlorophenyl)-6-ethoxy-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 121° C is obtained的产率得到6-amino-4-(3-chloro-phenyl)-2-ethoxy-3,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester