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发明人郭海燕,胡光,冯建国. "A Process for Preparing High-Purity Methyl (3R,4R)-3-(4-chlorophenyl)piperidine-4-carboxylate" [P]. 中国发明专利, 专利号 CN 114246391 A, 授权公告日 2015-10-17.
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