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发明人郑宇鹏,孙丽萍,郭海燕. "Method for the Synthesis of 2-(4-(Aminomethyl)-2-cyano-5-(difluoromethyl)pyridin-3-yl)acetic acid" [P]. 中国发明专利, 专利号 CN 109283747 A, 授权公告日 2018-10-17.
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