Nowak P, Johansson L, Sørensen M. "Method for the Synthesis of (2S,4S)-4-Cyanopyrrolidine-2-carboxylic Acid" [P]. European Patent, EP 3431433 A1, 2020-03-04.
发明人李文辉,刘建华,朱建伟. "A Process for Preparing High-Purity (2S,4S)-4-Cyanopyrrolidine-2-carboxylic Acid" [P]. 中国发明专利, 专利号 CN 115105231 A, 授权公告日 2023-11-22.
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