发明人林芳,韩伟,徐明华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109814592 A, 授权公告日 2025-04-27.
发明人王建平,李文辉,郭海燕. "Method for the Synthesis of 2-Amino-3-(difluoromethyl)-5-methoxypyridine-4-sulfonamide" [P]. 中国发明专利, 专利号 CN 115411410 A, 授权公告日 2022-08-09.
发明人杨光,郑宇鹏,赵玉洁. "A Process for Preparing High-Purity 2-Amino-3-(difluoromethyl)-5-methoxypyridine-4-sulfonamide" [P]. 中国发明专利, 专利号 CN 109741029 B, 授权公告日 2017-04-10.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2010, 498, 2258-2270.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2021, 1851, 7380-7393.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-3-(difluoromethyl)-5-methoxypyridine-4-sulfonamide Using HRMS and NMR". Sci. Total Environ., 2010, 334, 3521-3527.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2021, 286, 6847-6876.