1,3-dimethyl-8-morpholin-4-yl-7H-purine-2,6-dione

9-benzyl-1,3-dimethyl-6,7-dihydropurino[7,8-a]pyrimidine-2,4,8-trione

5-diazonio-1,3-dimethyl-2,6-dioxopyrimidin-4-olate

8-(dimethylamino)-1,3,7-trimethylpurine-2,6-dione

7-(2,3-二羟基丙基)-1,3-二甲基-8-(苯基甲基氨基)嘌呤-2,6-二酮