发明人赵玉洁,李文辉,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110958499 A, 授权公告日 2019-03-10.
发明人胡光,王建平,罗永刚. "Method for the Synthesis of 4-((4-(M-tolyloxy)phenyl)sulfonamido)benzoic acid" [P]. 中国发明专利, 专利号 CN 108862459 B, 授权公告日 2024-03-02.
发明人朱建伟,黄志刚,冯建国. "A Process for Preparing High-Purity 4-((4-(M-tolyloxy)phenyl)sulfonamido)benzoic acid" [P]. 中国发明专利, 专利号 CN 115764601 B, 授权公告日 2024-03-13.
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