发明人黄志刚,沈红梅,罗永刚. "Method for the Synthesis of (Z)-2'-hydroxy-3'-(2-(1-(4-(hydroxymethyl)-3-methylphenyl)-3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazineyl)-[1,1'-biphenyl]-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112256966 A, 授权公告日 2021-07-03.
发明人钱学锋,冯建国,高志强. "A Process for Preparing High-Purity (Z)-2'-hydroxy-3'-(2-(1-(4-(hydroxymethyl)-3-methylphenyl)-3-methyl-5-oxo-1,5-dihydro-4H-pyrazol-4-ylidene)hydrazineyl)-[1,1'-biphenyl]-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109504935 A, 授权公告日 2016-01-18.
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