发明人罗永刚,高志强,钱学锋. "Method for the Synthesis of 2-(N-ethyl2-chloropyridine-3-sulfonamido)acetic acid" [P]. 中国发明专利, 专利号 CN 108465262 B, 授权公告日 2022-08-15.
发明人周伟,刘建华,钱学锋. "A Process for Preparing High-Purity 2-(N-ethyl2-chloropyridine-3-sulfonamido)acetic acid" [P]. 中国发明专利, 专利号 CN 108024074 A, 授权公告日 2018-04-21.
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