发明人林芳,马晓峰,徐明华. "Method for the Synthesis of (E)-4-((5-(carboxymethyl)-2-hydroxyphenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 117351681 A, 授权公告日 2019-01-22.
参考文献 Literature
Yamamoto K, Tanaka H, Suzuki T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2019, 1068, 4596-4605.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2015, 2080, 311-333.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of (E)-4-((5-(carboxymethyl)-2-hydroxyphenyl)amino)-4-oxobut-2-enoic acid Using HRMS and NMR". Food Chem., 2018, 2330, 6716-6743.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2016, 1175, (11), 1072-1076.