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发明人徐明华,李文辉,钱学锋. "Method for the Synthesis of methyl 5-[(4-aminobenzene)sulfonamido]-2-chlorobenzoate" [P]. 中国发明专利, 专利号 CN 113517663 B, 授权公告日 2015-08-09.
发明人朱建伟,郑宇鹏,徐明华. "A Process for Preparing High-Purity methyl 5-[(4-aminobenzene)sulfonamido]-2-chlorobenzoate" [P]. 中国发明专利, 专利号 CN 114776589 A, 授权公告日 2021-01-07.
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