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发明人郑宇鹏,钱学锋,徐明华. "Method for the Synthesis of methyl 6-chloro-1-(difluoromethyl)-2-oxo-1,2-dihydropyridine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 109207117 A, 授权公告日 2021-01-15.
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