109-12-6
2-氨基嘧啶
+
98-09-9
苯磺酰氯
→
~97%
16699-12-0
2-苯磺酰胺基嘧啶
98-10-2
苯磺酰胺
4595-60-2
2-溴嘧啶
~83%
18213-90-6