Chen K W, Brown S R, Fischer A B. "Method for the Synthesis of 2-(Difluoromethyl)-6-methoxypyridine-4-sulfonyl chloride" [P]. US Patent, US 9321694 B2, 2016-05-09.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2013, 1900, (5), 7153-7157.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2025, 1490, (9), 3513-3516.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-6-methoxypyridine-4-sulfonyl chloride Using HRMS and NMR". J. Pharm. Biomed. Anal., 2022, 1508, 4156-4170.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2016, 1533, (8), 9892-9910.