发明人王建平,李文辉,罗永刚. "Method for the Synthesis of Ethyl 4-(5-chlorothiophene-2-sulfonamido)butanoate" [P]. 中国发明专利, 专利号 CN 111910392 B, 授权公告日 2017-08-08.
发明人赵玉洁,李文辉,郭海燕. "A Process for Preparing High-Purity Ethyl 4-(5-chlorothiophene-2-sulfonamido)butanoate" [P]. 中国发明专利, 专利号 CN 116116503 B, 授权公告日 2018-02-11.
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