发明人郑宇鹏,林芳,杨光. "Method for the Synthesis of 2-(Chloromethyl)-3-(difluoromethyl)-5-methylpyridine-4-acetonitrile" [P]. 中国发明专利, 专利号 CN 117470598 B, 授权公告日 2019-05-17.
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