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发明人王建平,徐明华,朱建伟. "A Process for Preparing High-Purity (R)-Tetrahydro-1H-oxazolo[3,4-a]pyrazin-3(5H)-one hydrochloride" [P]. 中国发明专利, 专利号 CN 113790529 A, 授权公告日 2022-05-11.
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