发明人何建平,张德明,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116940081 A, 授权公告日 2023-08-17.
发明人王建平,杨光,刘建华. "Method for the Synthesis of 4-(Furan-2-carbonyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112979679 A, 授权公告日 2025-12-15.
发明人马晓峰,郭海燕,陈志强. "A Process for Preparing High-Purity 4-(Furan-2-carbonyl)-8-methyl-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111459255 A, 授权公告日 2015-01-05.
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