4-[(2Z)-2-(4-amino-2,6-dioxopyrimidin-5-ylidene)hydrazinyl]-N-(1,3-thiazol-2-yl)benzenesulfonamide

2-氨基-噻唑并[4,5-d]嘧啶-5,7(4h,6h)-二酮

6-氨基-1-甲基尿嘧啶

5-溴-6-氨基尿嘧啶

1,3-二甲基-6-氨基脲嘧啶