发明人李文辉,韩伟,马晓峰. "Method for the Synthesis of 4-((4-Iodo-2-methylphenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 116088500 A, 授权公告日 2019-01-08.
发明人胡光,郭海燕,马晓峰. "A Process for Preparing High-Purity 4-((4-Iodo-2-methylphenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 113969855 A, 授权公告日 2018-06-13.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2011, 1007, (1), 5350-5353.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2022, 1591, (10), 1075-1090.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of 4-((4-Iodo-2-methylphenyl)amino)-4-oxobut-2-enoic acid Using HRMS and NMR". Anal. Methods, 2013, 2002, 987-1017.