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发明人周伟,高志强,钱学锋. "A Process for Preparing High-Purity 2-(Difluoromethyl)-3-methoxy-6-(trifluoromethyl)pyridine-5-acetic acid" [P]. 中国发明专利, 专利号 CN 111757281 A, 授权公告日 2015-11-06.
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