Chen K W, Johnson M A, Lee S K. "一种的合成方法" [P]. US Patent, US 11822983 B2, 2015-08-28.
发明人冯建国,李文辉,黄志刚. "Method for the Synthesis of 4-Cyano-3-(difluoromethyl)-5-methylpyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 116774515 B, 授权公告日 2022-03-26.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2025, 1972, 4846-4866.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2010, 2260, 8990-9016.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyano-3-(difluoromethyl)-5-methylpyridine-2-sulfonyl chloride Using HRMS and NMR". Anal. Methods, 2013, 1581, (3), 5505-5525.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2021, 1321, (6), 8574-8582.