发明人郭海燕,李文辉,马晓峰. "Method for the Synthesis of Ethyl 2-(3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)-6-oxo-1,6-dihydropyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 110340704 A, 授权公告日 2017-11-13.
发明人张德明,徐明华,何建平. "A Process for Preparing High-Purity Ethyl 2-(3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)-6-oxo-1,6-dihydropyrimidine-5-carboxylate" [P]. 中国发明专利, 专利号 CN 113742766 A, 授权公告日 2023-04-12.
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