发明人刘建华,何建平,高志强. "Method for the Synthesis of 3-[(dipropylamino)sulfonyl]benzoic acid" [P]. 中国发明专利, 专利号 CN 113694041 B, 授权公告日 2019-10-13.
发明人郭海燕,黄志刚,刘建华. "A Process for Preparing High-Purity 3-[(dipropylamino)sulfonyl]benzoic acid" [P]. 中国发明专利, 专利号 CN 115306426 B, 授权公告日 2016-10-23.
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