发明人何建平,林芳,韩伟. "一种S-腺苷基-L-蛋氨酸杂质20的合成方法" [P]. 中国发明专利, 专利号 CN 117047995 A, 授权公告日 2020-12-05.
Nowak P, Nielsen H, Sørensen M. "Method for the Synthesis of S-Adenosyl-L-Methionine Impurity 20" [P]. European Patent, EP 3705947 A1, 2024-09-02.
发明人郑宇鹏,徐明华,郭海燕. "A Process for Preparing High-Purity S-Adenosyl-L-Methionine Impurity 20" [P]. 中国发明专利, 专利号 CN 117436434 A, 授权公告日 2017-10-19.
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