发明人朱建伟,周伟,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117161438 A, 授权公告日 2021-10-28.
Anderson J P, Williams B T, Stevens L M. "Method for the Synthesis of N-(2-((4-Methoxyphenyl)amino)-2-oxoethyl)-N-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide" [P]. US Patent, US 9280123 B2, 2020-05-27.
发明人黄志刚,高志强,郑宇鹏. "A Process for Preparing High-Purity N-(2-((4-Methoxyphenyl)amino)-2-oxoethyl)-N-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide" [P]. 中国发明专利, 专利号 CN 112225946 B, 授权公告日 2021-03-13.
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., 2017, 1977, (2), 4041-4053.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2015, 770, (7), 4568-4586.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of N-(2-((4-Methoxyphenyl)amino)-2-oxoethyl)-N-methyl-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxamide Using HRMS and NMR". Chromatographia, 2017, 178, (9), 6957-6971.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2012, 1884, (8), 2826-2844.