发明人罗永刚,韩伟,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111523837 A, 授权公告日 2021-09-24.
发明人朱建伟,马晓峰,张德明. "Method for the Synthesis of (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(cyclobutyl)methanone" [P]. 中国发明专利, 专利号 CN 115985439 A, 授权公告日 2023-01-25.
发明人冯建国,刘建华,王建平. "A Process for Preparing High-Purity (2-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(cyclobutyl)methanone" [P]. 中国发明专利, 专利号 CN 112379601 B, 授权公告日 2019-08-21.
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