2,6-bis(benzylideneamino)-1H-pyrimidin-4-one

2,6-bis(furan-2-ylmethylideneamino)-1H-pyrimidin-4-one

2,4-二氨基-6-羟基-5-亚硝基嘧啶

4-[2-(2-氨基-4,7-二氢-4-氧-3H-吡咯并[2,3-d]嘧啶-5-基)乙基]苯甲酸甲酯

2,4-二氨基-6-氯嘧啶