Chen K W, Williams B T, Kumar R. "一种的合成方法" [P]. US Patent, US 10041132 B2, 2025-10-20.
发明人赵玉洁,冯建国,郭海燕. "Method for the Synthesis of 4-(Difluoromethyl)-6-fluoropyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 112850885 A, 授权公告日 2019-05-23.
发明人刘建华,王建平,张德明. "A Process for Preparing High-Purity 4-(Difluoromethyl)-6-fluoropyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 111454245 A, 授权公告日 2020-02-20.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2014, 596, 7338-7344.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2024, 1165, 1592-1600.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-6-fluoropyridine-3-sulfonyl chloride Using HRMS and NMR". J. Agric. Food Chem., 2012, 2056, 8748-8765.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2025, 1497, 6402-6428.