发明人陈志强,孙丽萍,何建平. "Method for the Synthesis of 1-(6-Oxa-2,9-diazaspiro[4.5]Decan-2-yl)ethan-1-one" [P]. 中国发明专利, 专利号 CN 109891886 B, 授权公告日 2016-08-13.
发明人李文辉,韩伟,钱学锋. "A Process for Preparing High-Purity 1-(6-Oxa-2,9-diazaspiro[4.5]Decan-2-yl)ethan-1-one" [P]. 中国发明专利, 专利号 CN 115707317 A, 授权公告日 2016-05-04.
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