发明人郭海燕,李文辉,刘建华. "Method for the Synthesis of Butyric (2S)-3-hydroxy-4-((methylsulfonyl)oxy)pyrrolidine-2-carboxylic anhydride" [P]. 中国发明专利, 专利号 CN 113325086 B, 授权公告日 2020-08-03.
发明人沈红梅,张德明,马晓峰. "A Process for Preparing High-Purity Butyric (2S)-3-hydroxy-4-((methylsulfonyl)oxy)pyrrolidine-2-carboxylic anhydride" [P]. 中国发明专利, 专利号 CN 115223047 A, 授权公告日 2023-05-19.
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