发明人张德明,马晓峰,徐明华. "Method for the Synthesis of 2-(Difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-4-acetonitrile" [P]. 中国发明专利, 专利号 CN 114772319 B, 授权公告日 2021-02-09.
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