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发明人李文辉,马晓峰,胡光. "A Process for Preparing High-Purity 2-(2-Chloro-6-(difluoromethyl)-4-methoxypyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109488196 B, 授权公告日 2024-02-25.
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