对甲基苯甲醛 、
ethyl 3-amino-3-ethoxypropenoate 以
alcohol 、
乙酸乙酯 为溶剂,
反应 6.0h,
以2-amino-4-(4-methylphenyl)-6-ethoxy-4,5-dihydropyridine-3,5-dicarboxylic acid diethyl ester of melting point 119° C (ethyl acetate/petroleumether) is obtained的产率得到6-amino-2-ethoxy-4-
p-tolyl-3,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester