4-氨基-3-戊烯-2-酮 、
ethyl 2-(4-cyano-2-methoxybenzylidene)-4,4-diethoxy-3-oxobutanoate 在
acetonitrile-water 、
甲酸 作用下,
以
异丙醇 为溶剂,
反应 16.0h,
以250 mg (28.6% of theory) of ethyl 5-acetyl-4-(4-cyano-2-methoxyphenyl)-2-(diethoxymethyl)-6-methyl-1,4-dihydropyridine-3-carboxylate are obtained [LC-MS (method 11): Rt=2.48 min; [M+H]+ (EIpos): m/z=443]的产率得到ethyl 5-acetyl-4-(4-cyano-2-methoxyphenyl)-2-(diethoxymethyl)-6-methyl-1,4-dihydropyridine-3-carboxylate