发明人陈志强,钱学锋,罗永刚. "Method for the Synthesis of 2-(Difluoromethyl)-6-hydroxy-4-methylpyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 108344450 B, 授权公告日 2024-05-11.
发明人马晓峰,高志强,朱建伟. "A Process for Preparing High-Purity 2-(Difluoromethyl)-6-hydroxy-4-methylpyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 109925249 A, 授权公告日 2016-10-13.
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". Anal. Chem., 2023, 2099, 6268-6288.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2010, 350, 9073-9088.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-6-hydroxy-4-methylpyridine-3-sulfonyl chloride Using HRMS and NMR". Anal. Chim. Acta, 2023, 1448, 6413-6436.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2023, 1632, (4), 5710-5732.