发明人罗永刚,杨光,李文辉. "Method for the Synthesis of 3-(Pyridin-4-yl)-1H-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 112401844 A, 授权公告日 2018-05-09.
发明人郭海燕,孙丽萍,徐明华. "A Process for Preparing High-Purity 3-(Pyridin-4-yl)-1H-pyrazol-5(4H)-one" [P]. 中国发明专利, 专利号 CN 115282100 A, 授权公告日 2024-02-23.
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