8-溴茶碱

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

1,3-二甲基尿酸

1,3-dimethyl-8-(E)-styryl-3,7-dihydro-1H-purine-2,6-dione

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

8-溴-1,3,7-三甲基嘌呤-2,6-二酮

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

1,3-dimethyl-2-oxo-8-pyridin-1-ium-1-ylpurin-6-olate

7-(2-hydroxy-3-phenoxypropyl)-1,3-dimethyl-8-[(2E)-2-[(E)-3-(5-nitrofuran-2-yl)prop-2-enylidene]hydrazinyl]purine-2,6-dione

7-(2,3-二羟基丙基)-1,3-二甲基-8-甲基氨基嘌呤-2,6-二酮

对苯基苯酚

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

8-bromo-7-(2,3-dihydroxypropyl)-1,3-dimethylpurine-2,6-dione

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

1,3,7-trimethyl-8-phenylpurine-2,6-dione

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

茶碱

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

8-hydrazinyl-1,3-dimethyl-7-prop-2-enylpurine-2,6-dione