发明人罗永刚,林芳,陈志强. "Method for the Synthesis of Ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 112300378 B, 授权公告日 2019-10-26.
发明人王建平,朱建伟,刘建华. "A Process for Preparing High-Purity Ethyl 5-oxo-1-phenyl-4,5-dihydro-1H-pyrazole-4-carboxylate" [P]. 中国发明专利, 专利号 CN 116388968 A, 授权公告日 2019-09-01.
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