发明人黄志刚,高志强,韩伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 116197559 A, 授权公告日 2023-08-14.
发明人何建平,陈志强,沈红梅. "Method for the Synthesis of 8-Ethyl-4-(pyridine-3-carbonyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113295682 A, 授权公告日 2017-08-06.
发明人沈红梅,郭海燕,黄志刚. "A Process for Preparing High-Purity 8-Ethyl-4-(pyridine-3-carbonyl)-1-oxa-4,8-diazaspiro[4.5]decane-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116762790 A, 授权公告日 2020-02-18.
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