发明人韩伟,林芳,朱建伟. "Method for the Synthesis of 3-Methyl-4-((4-(6-methylbenzo[d]thiazol-2-yl)phenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 108373609 B, 授权公告日 2020-07-13.
发明人刘建华,周伟,黄志刚. "A Process for Preparing High-Purity 3-Methyl-4-((4-(6-methylbenzo[d]thiazol-2-yl)phenyl)amino)-4-oxobut-2-enoic acid" [P]. 中国发明专利, 专利号 CN 117326021 B, 授权公告日 2021-12-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2011, 2345, (7), 6451-6472.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2012, 2163, 8400-8410.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 3-Methyl-4-((4-(6-methylbenzo[d]thiazol-2-yl)phenyl)amino)-4-oxobut-2-enoic acid Using HRMS and NMR". Anal. Chem., 2020, 2363, (12), 1218-1235.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2018, 2380, (6), 8304-8309.