发明人林芳,陈志强,胡光. "Method for the Synthesis of 2-(1-Methyl-1H-pyrazol-4-yl)-2,7-diazaspiro[4.4]nonan-1-one" [P]. 中国发明专利, 专利号 CN 113750720 A, 授权公告日 2024-03-20.
发明人陈志强,孙丽萍,李文辉. "A Process for Preparing High-Purity 2-(1-Methyl-1H-pyrazol-4-yl)-2,7-diazaspiro[4.4]nonan-1-one" [P]. 中国发明专利, 专利号 CN 117566098 A, 授权公告日 2016-04-26.
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