4,6-二甲氧基-5-嘧啶甲醛 、
3-氨基-3-亚氨基丙酸乙酯 以
乙醇 为溶剂,
反应 2.0h,
以2,6-diamino-4-(4,6-dimethoxypyrimid-5-yl)-1,4-dihydropyridine-3,5-dicarboxylic acid diethyl ester of m.p. 219° C (ethanol) is obtained的产率得到2,6-diamino-4-(4,6-dimethoxy-pyrimidin-5-yl)-1,4-dihydro-pyridine-3,5-dicarboxylic acid diethyl ester