4,6-二甲氧基-5-嘧啶甲醛 、
1,3-环己二酮 、
3-氨基-3-亚氨基丙酸乙酯 以
乙醇 为溶剂,
反应 8.0h,
以2-amino-4-(4,6-dimethoxypyrimid-5-yl)-1,4,5,6,7,8-hexahydro-5-oxoquinoline-3-carboxylic acid ethyl ester of melting point 273°C (alcohol) is obtained的产率得到2-amino-4-(4,6-dimethoxy-pyrimidin-5-yl)-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylic acid ethyl ester