发明人王建平,周伟,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110606101 A, 授权公告日 2023-03-24.
发明人陈志强,高志强,马晓峰. "Method for the Synthesis of 2-(Difluoromethyl)-3-methyl-5-nitropyridine-4-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 114458137 B, 授权公告日 2020-10-18.
发明人孙丽萍,陈志强,王建平. "A Process for Preparing High-Purity 2-(Difluoromethyl)-3-methyl-5-nitropyridine-4-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 108980463 A, 授权公告日 2017-12-22.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2017, 1109, 7428-7457.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2012, 2402, (10), 8188-8207.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-3-methyl-5-nitropyridine-4-sulfonyl chloride Using HRMS and NMR". J. Nat. Prod., 2012, 1255, (3), 1264-1284.
Garcia M, Rodriguez P. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2012, 1566, 1535-1548.