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发明人唐晓军,王建平,冯建国. "A Process for Preparing High-Purity 2-(Difluoromethyl)-5-iodo-4-methylpyridine-3-acetic acid" [P]. 中国发明专利, 专利号 CN 109143468 A, 授权公告日 2020-07-16.
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