发明人张德明,林芳,高志强. "Method for the Synthesis of 4-Oxo-4-((2-(trifluoromethyl)phenyl)amino)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 112501578 A, 授权公告日 2020-06-19.
发明人罗永刚,何建平,冯建国. "A Process for Preparing High-Purity 4-Oxo-4-((2-(trifluoromethyl)phenyl)amino)but-2-enoic acid" [P]. 中国发明专利, 专利号 CN 115345326 A, 授权公告日 2024-09-12.
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