Yamamoto T, O'Brien P Q, Park J H. "一种的合成方法" [P]. US Patent, US 9026963 B2, 2023-02-27.
发明人马晓峰,刘建华,沈红梅. "Method for the Synthesis of 4-Cyano-2-(difluoromethyl)-5-nitropyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 112757044 B, 授权公告日 2018-02-20.
发明人马晓峰,罗永刚,冯建国. "A Process for Preparing High-Purity 4-Cyano-2-(difluoromethyl)-5-nitropyridine-3-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 111001055 A, 授权公告日 2017-10-06.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2010, 1306, (6), 3127-3137.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2017, 716, (11), 373-390.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyano-2-(difluoromethyl)-5-nitropyridine-3-sulfonyl chloride Using HRMS and NMR". J. Nat. Prod., 2025, 2186, (7), 3937-3965.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2013, 2446, (5), 160-189.