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发明人李文辉,黄志刚,冯建国. "A Process for Preparing High-Purity 2-(Difluoromethyl)-6-fluoro-3-(trifluoromethoxy)pyridine-5-acetic acid" [P]. 中国发明专利, 专利号 CN 108567776 B, 授权公告日 2024-03-22.
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