发明人高志强,杨光,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112227029 A, 授权公告日 2015-02-26.
Anderson J P, Roberts E F, Stevens L M. "Method for the Synthesis of 4-Amino-5-chloro-3-(difluoromethyl)pyridine-2-sulfonyl chloride" [P]. US Patent, US 9113757 B2, 2023-04-04.
发明人沈红梅,罗永刚,林芳. "A Process for Preparing High-Purity 4-Amino-5-chloro-3-(difluoromethyl)pyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 112601500 B, 授权公告日 2018-07-18.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2012, 1947, (9), 8128-8155.
Kowalski T, Nowak Z. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2012, 1479, 5183-5188.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-Amino-5-chloro-3-(difluoromethyl)pyridine-2-sulfonyl chloride Using HRMS and NMR". J. Agric. Food Chem., 2016, 1829, (4), 2303-2312.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2020, 974, (7), 5995-5998.