2-oxo-5-phenylthiomethyl-cyclopentaneheptanoic acid methyl ester 、
间氯过氧苯甲酸 以to obtain 800 mg of 5-benzenesulfinylmethyl-2-oxo-cyclopentaneheptanoic acid methyl ester as viscous oil的产率得到5-benzenesulfinylmethyl-2-oxo-cyclopentaneheptanoic acid methyl ester