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发明人张德明,朱建伟,马晓峰. "Method for the Synthesis of (2R,3R)-2-(3-Chloro-phenyl)-1-ethyl-6-oxo-piperidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 117772347 B, 授权公告日 2025-03-13.
发明人沈红梅,赵玉洁,胡光. "A Process for Preparing High-Purity (2R,3R)-2-(3-Chloro-phenyl)-1-ethyl-6-oxo-piperidine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114315006 A, 授权公告日 2018-10-09.
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