发明人罗永刚,韩伟,陈志强. "Method for the Synthesis of 1-Oxo-6-Oxa-9-Aza-Spiro[4.5]Decane-9-Carboxylic Acid Tert-Butyl Ester" [P]. 中国发明专利, 专利号 CN 110788671 A, 授权公告日 2016-12-13.
发明人韩伟,王建平,杨光. "A Process for Preparing High-Purity 1-Oxo-6-Oxa-9-Aza-Spiro[4.5]Decane-9-Carboxylic Acid Tert-Butyl Ester" [P]. 中国发明专利, 专利号 CN 110145192 A, 授权公告日 2021-10-02.
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