27143-10-8
[(4-溴苯基)肼基]氯乙酸乙酯
+
109-77-3
丙二腈
→
~82%
96723-27-2
5-氨基-1-(4-溴苯基)-4-氰基吡唑-3-羧酸乙酯
106-40-1
4-溴苯胺