706791-80-2
3-bromo-5-(4-chlorobutanoylamino)benzoic acid methyl ester
→
~77%
537657-85-5
3-溴-5-(2-氧代吡咯烷-1-基)苯甲酸甲酯
616-45-5
2-吡咯烷酮
+
188813-07-2
3-溴-5-碘苯甲酸甲酯
~49%