发明人刘建华,何建平,唐晓军. "Method for the Synthesis of (4Z)-4-{[(2-hydroxyphenyl)amino]methylidene}-1-methyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 112956825 A, 授权公告日 2018-08-28.
发明人林芳,沈红梅,王建平. "A Process for Preparing High-Purity (4Z)-4-{[(2-hydroxyphenyl)amino]methylidene}-1-methyl-3-(trifluoromethyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 109626760 A, 授权公告日 2024-08-20.
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