发明人黄志刚,朱建伟,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114462123 A, 授权公告日 2018-11-14.
发明人杨光,罗永刚,陈志强. "Method for the Synthesis of 2,4-Dichloro-5-(difluoromethyl)pyridine-3-sulfonamide" [P]. 中国发明专利, 专利号 CN 108258346 B, 授权公告日 2025-07-27.
Roberts E F, Davis P L, Hughes D C. "A Process for Preparing High-Purity 2,4-Dichloro-5-(difluoromethyl)pyridine-3-sulfonamide" [P]. US Patent, US 10448303 B2, 2021-03-07.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2014, 483, (11), 8763-8779.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2023, 1808, 5385-5411.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 2,4-Dichloro-5-(difluoromethyl)pyridine-3-sulfonamide Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2011, 150, (8), 5624-5647.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2024, 456, 816-843.