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发明人郑宇鹏,冯建国,沈红梅. "Method for the Synthesis of 5-Oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 113909869 A, 授权公告日 2021-12-07.
发明人黄志刚,孙丽萍,罗永刚. "A Process for Preparing High-Purity 5-Oxo-1-(p-tolyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108178735 A, 授权公告日 2024-07-05.
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