发明人林芳,郭海燕,陈志强. "Method for the Synthesis of 2-((5-Carbamoyl-1-methyl-1H-pyrrole)-3-sulfonamido)-5-(indolin-1-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 112897496 A, 授权公告日 2019-01-04.
发明人徐明华,黄志刚,朱建伟. "A Process for Preparing High-Purity 2-((5-Carbamoyl-1-methyl-1H-pyrrole)-3-sulfonamido)-5-(indolin-1-yl)benzoic acid" [P]. 中国发明专利, 专利号 CN 114079378 A, 授权公告日 2018-10-09.
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