发明人郭海燕,胡光,杨光. "Method for the Synthesis of 4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 116368993 A, 授权公告日 2020-07-02.
发明人唐晓军,高志强,孙丽萍. "A Process for Preparing High-Purity 4-{[(4-chlorophenyl)amino]methylidene}-3-(methoxymethyl)-4,5-dihydro-1H-pyrazol-5-one" [P]. 中国发明专利, 专利号 CN 117909021 A, 授权公告日 2022-05-25.
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