14254-57-0
异烟酸酰氯
+
56973-26-3
5-羟基-1H-咪唑-4-甲酰胺
→
77444-69-0
(5-carbamoyl-1H-imidazol-4-yl) pyridine-4-carboxylate
39178-35-3
氯化异氰盐酸盐