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发明人马晓峰,朱建伟,李文辉. "A Process for Preparing High-Purity 2-(4-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophen-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 112136781 B, 授权公告日 2021-05-23.
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