2-氯-5-硝基苯甲醛 、
ethyl 3-amino-3-ethoxypropenoate 以
异丙醇 为溶剂,
反应 6.0h,
以2-amino-4-(3-nitro-6-chlorophenyl)-6-ethoxy-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 136°-37° C (isopropanol) is obtained的产率得到6-amino-4-(2-chloro-5-nitro-phenyl)-2-ethoxy-3,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester