43028-71-3
2-formylaminothiophene-3-carboxamide
→
18740-34-6
(4-氧代噻吩并[2,3-d]嘧啶-3(4h)-基)乙酸
4651-82-5
2-氨基-3-氰基噻吩
14080-50-3
噻吩并[2,3-d]嘧啶-4(3H)-酮
+
79-11-8
氯乙酸