N-(4-amino-1,3-dimethyl-2,6-dioxopyrimidin-5-yl)-2-cyanoacetamide

8-(4-fluorophenyl)-1,3-dimethyl-7H-purine-2,6-dione

1,3-二甲基-8-异丁基-1H-嘌呤-2,6(3H,7H)-二酮

N-(4-amino-1,3-dimethyl-2,6-dioxopyrimidin-5-yl)-3,5-ditert-butyl-4-hydroxybenzamide

6-amino-5-(benzylideneamino)-1,3-dimethylpyrimidine-2,4-dione