甲醇

2-(4-chlorophenyl)-2-oxo-1-phenylethyl 4-methylbenzenesulfonate

2-(4-chlorophenyl)-2-oxo-1-phenylethyl 4-chlorobenzenesulfonate

4-Methoxy-benzenesulfonic acid 2-(4-chloro-phenyl)-2-oxo-1-phenyl-ethyl ester

2-(4-methoxyphenyl)-2-oxo-1-phenylethyl 4-methoxybenzenesulfonate