Rossi M, Johansson L, Jørgensen K. "Method for the Synthesis of 2-Cyano-4,5-difluorobenzenesulfonyl chloride" [P]. European Patent, EP 3349367 A1, 2017-02-04.
Patel M V, Thompson G K, Roberts E F. "A Process for Preparing High-Purity 2-Cyano-4,5-difluorobenzenesulfonyl chloride" [P]. US Patent, US 10957215 B2, 2022-05-25.
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., 2011, 340, (11), 3722-3735.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 1033, (6), 940-948.
Brown R C, Davis S M. "Identification and Structural Characterization of a Novel Degradation Product of 2-Cyano-4,5-difluorobenzenesulfonyl chloride Using HRMS and NMR". Chemosphere, 2022, 438, (3), 2602-2623.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2019, 862, (2), 8750-8755.