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发明人徐明华,何建平,韩伟. "A Process for Preparing High-Purity N1-(2,4-Difluorophenyl)-N2-(2,2-dimethoxyethyl)oxalamide" [P]. 中国发明专利, 专利号 CN 111102238 A, 授权公告日 2015-06-28.
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