发明人林芳,马晓峰,沈红梅. "Method for the Synthesis of 6-Methyl-2-(methylamino)-4-(trifluoromethyl)pyridine-3-carbonitrile" [P]. 中国发明专利, 专利号 CN 110998694 A, 授权公告日 2020-04-07.
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