38256-25-6
(E)-2-氧代戊烯二酸二甲酯
+
591-19-5
间溴苯胺
→
438590-09-1
dimethyl 5-bromoquinoline-2,4-dicarboxylate
1020568-10-8
7-溴喹啉-2,4-二羧酸二甲酯