Potassium;8-chloro-1,3-dimethylpurin-9-ide-2,6-dione 、 alkaline earth salt of/the/ methylsulfuric acid 以
N,N-二甲基甲酰胺 、
叔丁醇 为溶剂,
反应 3.0h,
以79%的产率得到ethyl 6-[(8-chloro-1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-7H-purin-7-yl)methyl]-1-methyl-2-oxo-4-(3-nitrophenyl)-1,2,3,4-tetrahydropyrimidine-5-carboxylate