发明人张德明,周伟,钱学锋. "Method for the Synthesis of 2-(Difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-5-carbonyl chloride" [P]. 中国发明专利, 专利号 CN 112142020 B, 授权公告日 2022-03-14.
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