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发明人李文辉,周伟,王建平. "A Process for Preparing High-Purity 2-(5,7,8,9-Tetrahydro-5-hydroxy-6H-benzocyclohepten-6-ylidene)acetic acid" [P]. 中国发明专利, 专利号 CN 113150240 B, 授权公告日 2020-03-05.
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