3680-69-1
4-氯吡咯并嘧啶
→
~96%
115093-90-8
4,5-二氯-7H-吡咯并[2,3-D]嘧啶
128-09-6
N-氯代丁二酰亚胺
+
~90%
1618-36-6
4-氯-5-甲基-7H-吡咯并[2,3-d]嘧啶
~81%