发明人钱学锋,沈红梅,马晓峰. "Method for the Synthesis of Ethyl 1-(3-chlorophenyl)-6-oxo-4-(trifluoromethyl)-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 109409944 A, 授权公告日 2017-01-26.
发明人唐晓军,李文辉,沈红梅. "A Process for Preparing High-Purity Ethyl 1-(3-chlorophenyl)-6-oxo-4-(trifluoromethyl)-1,6-dihydropyridazine-3-carboxylate" [P]. 中国发明专利, 专利号 CN 108598637 B, 授权公告日 2017-02-02.
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