N-[4-(pyrrolidine-1-carbonyl)-1,2,5-thiadiazol-3-yl]pyrrolidine-1-carboxamide

N-benzyl-4-ureido-1,2,5-thiadiazole-3-carboxamide

N-benzyl-4-(benzylcarbamoylamino)-1,2,5-thiadiazole-3-carboxamide

4,6-二甲基[1,2,5]噻二唑并[3,4-d]嘧啶-5,7(4H,6H)-二酮