发明人林芳,马晓峰,钱学锋. "Method for the Synthesis of 2-(6-Bromo-5-(difluoromethyl)-4-(trifluoromethyl)pyridin-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109257552 B, 授权公告日 2017-09-09.
发明人郭海燕,陈志强,冯建国. "A Process for Preparing High-Purity 2-(6-Bromo-5-(difluoromethyl)-4-(trifluoromethyl)pyridin-2-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 112558885 A, 授权公告日 2016-11-09.
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