发明人孙丽萍,郑宇鹏,冯建国. "Method for the Synthesis of Methyl 2-(dipropylamino)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 113860574 B, 授权公告日 2024-12-22.
发明人陈志强,罗永刚,李文辉. "A Process for Preparing High-Purity Methyl 2-(dipropylamino)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylate" [P]. 中国发明专利, 专利号 CN 114817248 A, 授权公告日 2020-12-11.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2014, 1868, (9), 9474-9492.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2016, 736, (3), 3779-3797.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-(dipropylamino)-3-oxo-3,4-dihydro-2H-benzo[b][1,4]thiazine-6-carboxylate Using HRMS and NMR". Talanta, 2017, 1662, (4), 3647-3677.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2022, 456, (9), 4821-4836.