1,3-dimethyllumazine-6-aldehyde

6,7-bis(methoxycarbonyl)-1,3-dimethyllumazine

1,3-dimethyl-2,4-dioxopteridine-6-carbonitrile

5,6-二氨基-1,3-二甲基尿苷水合物

1,3-二甲基-6-亚氨基-5-异亚硝基尿嘧啶