发明人林芳,孙丽萍,沈红梅. "Method for the Synthesis of 1-[(4-Methylphenyl)methyl]-6-oxo-1,6-dihydropyridazine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 114920176 B, 授权公告日 2015-08-01.
发明人赵玉洁,何建平,钱学锋. "A Process for Preparing High-Purity 1-[(4-Methylphenyl)methyl]-6-oxo-1,6-dihydropyridazine-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108517385 A, 授权公告日 2015-06-22.
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