发明人周伟,朱建伟,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114557731 A, 授权公告日 2023-02-04.
发明人徐明华,刘建华,唐晓军. "Method for the Synthesis of 4-((4-Methoxy-N-methyl-3-(N-methylmethylsulfonamido)phenyl)sulfonamido)butanoic acid" [P]. 中国发明专利, 专利号 CN 116460139 A, 授权公告日 2025-09-08.
发明人郑宇鹏,胡光,韩伟. "A Process for Preparing High-Purity 4-((4-Methoxy-N-methyl-3-(N-methylmethylsulfonamido)phenyl)sulfonamido)butanoic acid" [P]. 中国发明专利, 专利号 CN 116263350 B, 授权公告日 2020-04-19.
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