发明人张德明,冯建国,陈志强. "Method for the Synthesis of Ethyl 6-(2-((1,4-dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)-6-oxohexanoate" [P]. 中国发明专利, 专利号 CN 111989036 A, 授权公告日 2016-03-03.
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