Fischer A B, Mueller T, Anderson J P. "一种的合成方法" [P]. US Patent, US 11613239 B2, 2025-02-09.
Sørensen M, Björnsson E, Jørgensen K. "Method for the Synthesis of tert-Butyl N-(2-((4-(4-(3-bromo-4-fluorophenyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-yl)amino)ethyl)sulfamoylcarbamate" [P]. European Patent, EP 3846197 A1, 2018-07-03.
Jørgensen K, Kowalski A, Nielsen H. "A Process for Preparing High-Purity tert-Butyl N-(2-((4-(4-(3-bromo-4-fluorophenyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-yl)amino)ethyl)sulfamoylcarbamate" [P]. European Patent, EP 3177122 A1, 2023-01-22.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2018, 1904, 5483-5509.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2013, 2462, 8697-8719.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl N-(2-((4-(4-(3-bromo-4-fluorophenyl)-5-oxo-4,5-dihydro-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-yl)amino)ethyl)sulfamoylcarbamate Using HRMS and NMR". Phytochemistry, 2023, 216, (4), 6533-6553.