5205-39-0
戊二酸单乙酯酰氯
+
108-86-1
溴代苯
→
35333-26-7
5-(4-溴苯基)-5-氧代戊酸
108-55-4
戊二酸酐
90991-23-4
1501-26-4
4-氯甲酰基丁酸甲酯
898792-67-1
ethyl 5-(4-bromophenyl)-5-oxopentanoate