发明人王建平,高志强,朱建伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111762521 A, 授权公告日 2024-03-12.
发明人冯建国,王建平,马晓峰. "Method for the Synthesis of 4-(Difluoromethyl)-2-fluoro-5-hydroxypyridine-3-sulfonamide" [P]. 中国发明专利, 专利号 CN 117024362 B, 授权公告日 2023-01-28.
Kowalski A, Björnsson E, Mueller T C. "A Process for Preparing High-Purity 4-(Difluoromethyl)-2-fluoro-5-hydroxypyridine-3-sulfonamide" [P]. European Patent, EP 3987601 A1, 2019-02-15.
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". J. Agric. Food Chem., 2015, 665, 185-203.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2022, 2202, 5446-5474.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-2-fluoro-5-hydroxypyridine-3-sulfonamide Using HRMS and NMR". Anal. Methods, 2024, 1101, 5179-5184.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2011, 840, (8), 7513-7523.