ethyl 7-methyl-3-phenyl-2,4-dioxo-1,2,3,4-tetrahydropyrido<2,3-d>pyrimidine-5-carboxylate 在
乙醇 、
potassium carbonate 作用下,
以
乙腈 为溶剂,
反应 15.0h,
生成
Pyrido(2,3-d)pyrimidine-5-carboxylic acid, 1,2,3,4-tetrahydro-2,4-dioxo-7-methyl-3-phenyl-1-(4-(4-phenyl-1-piperazinyl)butyl)-, ethyl ester