发明人赵玉洁,马晓峰,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108690686 A, 授权公告日 2015-12-04.
发明人陈志强,罗永刚,朱建伟. "Method for the Synthesis of 1-(5-Chloro-1-ethyl-6-oxo-1,6-dihydropyridazin-4-yl)-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108408091 A, 授权公告日 2016-05-11.
发明人钱学锋,沈红梅,胡光. "A Process for Preparing High-Purity 1-(5-Chloro-1-ethyl-6-oxo-1,6-dihydropyridazin-4-yl)-1H-pyrazole-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112010685 A, 授权公告日 2022-08-27.
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