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发明人孙丽萍,高志强,刘建华. "A Process for Preparing High-Purity Ethyl 1-(4,4,4-trifluoro-3-oxobut-1-enyl)piperidine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 111920247 B, 授权公告日 2023-12-21.
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