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发明人马晓峰,胡光,徐明华. "A Process for Preparing High-Purity tert-Butyl 4-(2-oxoethyl)-4-phenylpiperidine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 112899494 B, 授权公告日 2019-11-02.
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