发明人杨光,赵玉洁,罗永刚. "Method for the Synthesis of 4-Cyano-5-(difluoromethyl)-3-hydroxy-2-(trifluoromethyl)pyridine" [P]. 中国发明专利, 专利号 CN 112640416 A, 授权公告日 2016-12-01.
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