3-acetyl-N,N-dimethylbenzenesulfonamide 、
碳酸二乙酯 在
3-(3-dimethylsulfamoyl-phenyl)-3-oxo-propionic acid ethyl ester 、 crude product 、 silica gel 、
乙酸乙酯 、
正己烷 作用下,
以to yield 0.11g (28%) of 3-(3-dimethylsulfamoyl-phenyl)-3-oxo-propionic acid ethyl ester as a colorless oil, MS 300.3 [M+H]的产率得到3-(3-dimethylsulfamoyl-phenyl)-3-oxo-propionic acid ethyl ester