Lefèvre J P, Björnsson E, Rossi M. "Method for the Synthesis of 5,6-Dichloro-N-(2,4-dimethoxybenzyl)-N-(5-fluorothiazol-2-yl)pyridine-3-sulfonamide" [P]. European Patent, EP 3364772 A1, 2021-11-12.
Mueller T, Williams B T, Roberts E F. "A Process for Preparing High-Purity 5,6-Dichloro-N-(2,4-dimethoxybenzyl)-N-(5-fluorothiazol-2-yl)pyridine-3-sulfonamide" [P]. US Patent, US 10511983 B2, 2015-07-19.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2012, 532, 2331-2350.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2023, 1982, (8), 7108-7131.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 5,6-Dichloro-N-(2,4-dimethoxybenzyl)-N-(5-fluorothiazol-2-yl)pyridine-3-sulfonamide Using HRMS and NMR". J. Pharm. Biomed. Anal., 2019, 1115, 1862-1886.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2014, 2202, 2048-2061.