4-氨基-2-羟基-6-甲基吡啶 、 2-cyanoethyl 2-(4-cyano-2-methoxybenzylidene)-3-oxobutanoate 在
乙醚 作用下,
以
异丙醇 为溶剂,
反应 16.0h,
以1.53 g (76% of theory) of the title compound are obtained的产率得到2-cyanoethyl 4-(4-cyano-2-methoxyphenyl)-2,7-dimethyl-5-oxo-1,4,5,6-tetrahydro-1,6-naphthyridine-3-carboxylate