m-chloroperoxybenzoic acid 、 5-(S)-Acetamidomethyl-3-[4'-methylsulfinyl-3'-fluorophenyl]oxazolidine-2-one 以
4-(dicyanomethylene)-2-methyl-6-(p-dimethylaminostyryl)-4H-pyran 为溶剂,
以92%的产率得到5-(S)-Acetamidomethyl-3-[4'-methylsulfonyl-3'-fluorophenyl]oxazolidine-2-one