3,7-二氢-1,3-二甲基-7-(吗啉基甲基)-1H-嘌呤-2,6-二酮

7-(ethoxymethyl)-1,3-dimethylpurine-2,6-dione

2-(1,3-dimethyl-2,6-dioxopurin-7-yl)acetonitrile

二甲沙生