Patel M V, Klinger H, Fischer A B. "一种的合成方法" [P]. US Patent, US 9565365 B2, 2018-02-08.
发明人孙丽萍,林芳,杨光. "Method for the Synthesis of (Z)-4-((4-Ethylphenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 109656573 A, 授权公告日 2017-08-12.
发明人马晓峰,赵玉洁,冯建国. "A Process for Preparing High-Purity (Z)-4-((4-Ethylphenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 117769740 B, 授权公告日 2024-10-10.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2024, 2243, (1), 8902-8905.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 1312, (9), 8571-8578.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of (Z)-4-((4-Ethylphenyl)amino)-4-oxobut-2-enoic acid Using HRMS and NMR". Food Chem., 2015, 467, (11), 8798-8806.