间硝基苯甲醛 、
ethyl 3-amino-3-ethoxypropenoate 以
异丙醇 为溶剂,
反应 6.0h,
以2-amino-4-(3-nitrophenyl)-6-ethoxy-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 129° (isopropanol) is obtained的产率得到6-amino-2-ethoxy-4-(3-nitro-phenyl)-3,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester