发明人王建平,冯建国,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109644661 A, 授权公告日 2019-09-03.
发明人杨光,胡光,韩伟. "Method for the Synthesis of 2-Benzyl-8-oxa-2-azaspiro[4.5]decane-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 110867883 A, 授权公告日 2019-06-05.
发明人何建平,徐明华,刘建华. "A Process for Preparing High-Purity 2-Benzyl-8-oxa-2-azaspiro[4.5]decane-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111552896 A, 授权公告日 2021-04-05.
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