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发明人何建平,沈红梅,孙丽萍. "A Process for Preparing High-Purity (S)-2,3,8,8A-tetrahydroindolizin-5(1H)-one" [P]. 中国发明专利, 专利号 CN 116313676 A, 授权公告日 2018-10-13.
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