Kumar R, Park J H, Brown S R. "Method for the Synthesis of (2Z)-2-{[(2,4-difluorophenyl)amino](hydroxy)methylidene}-3-oxo-4-phenoxybutanenitrile" [P]. US Patent, US 11209777 B2, 2025-03-20.
发明人周伟,孙丽萍,黄志刚. "A Process for Preparing High-Purity (2Z)-2-{[(2,4-difluorophenyl)amino](hydroxy)methylidene}-3-oxo-4-phenoxybutanenitrile" [P]. 中国发明专利, 专利号 CN 117712312 A, 授权公告日 2021-08-24.
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