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发明人冯建国,沈红梅,孙丽萍. "A Process for Preparing High-Purity (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(m-tolyl)methanone" [P]. 中国发明专利, 专利号 CN 111509184 B, 授权公告日 2018-01-17.
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