33277-15-5
3-(4-溴-苯基)-异噁唑-5-羧酸乙酯
→
~83%
33282-23-4
5-(4-溴苯基)异噁唑-3-羧酸
99-90-1
4-溴苯乙酮
1221821-65-3
2-hydroxy-4-oxo-4-p-bromophenylbut-2-enoic acid ethyl ester