Schröder R, Yamamoto T, Brown S R. "一种4-(二氟甲基)-5-甲基-3-硝基吡啶-2-磺酰氯的合成方法" [P]. US Patent, US 10808677 B2, 2022-08-18.
Johansson L, Björnsson E, Martínez F. "Method for the Synthesis of 4-(Difluoromethyl)-5-methyl-3-nitropyridine-2-sulfonyl chloride" [P]. European Patent, EP 3562900 A1, 2015-07-22.
发明人钱学锋,唐晓军,徐明华. "A Process for Preparing High-Purity 4-(Difluoromethyl)-5-methyl-3-nitropyridine-2-sulfonyl chloride" [P]. 中国发明专利, 专利号 CN 113795221 B, 授权公告日 2015-12-10.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 4-(二氟甲基)-5-甲基-3-硝基吡啶-2-磺酰氯 in Pharmaceutical Formulations". Molecules, 2020, 1845, (5), 9422-9442.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 4-(二氟甲基)-5-甲基-3-硝基吡啶-2-磺酰氯 as an Impurity". J. Agric. Food Chem., 2022, 1840, (10), 4534-4549.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Difluoromethyl)-5-methyl-3-nitropyridine-2-sulfonyl chloride Using HRMS and NMR". J. Chromatogr. A, 2021, 2472, (10), 873-882.