Yamamoto T, Park J H, Hughes D C. "Method for the Synthesis of 4-(Difluoromethyl)-2,5-difluoropyridine-3-sulfonamide" [P]. US Patent, US 11611400 B2, 2024-01-18.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Agric. Food Chem., 2020, 2300, 9442-9447.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2022, 337, (5), 4955-4962.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-2,5-difluoropyridine-3-sulfonamide Using HRMS and NMR". Phytochemistry, 2016, 1845, 5428-5457.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2025, 1388, 2704-2713.