发明人杨光,林芳,高志强. "Method for the Synthesis of 4-bromo-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116079959 A, 授权公告日 2016-09-15.
发明人李文辉,胡光,徐明华. "A Process for Preparing High-Purity 4-bromo-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108972114 B, 授权公告日 2019-03-27.
参考文献 Literature
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