Nielsen H, Schröder R, Nowak P. "一种的合成方法" [P]. European Patent, EP 3561699 A1, 2017-09-10.
Schröder R, Park J H, Kumar R. "Method for the Synthesis of 3-(4-Methoxyphenyl)-5-oxo-4-(trifluoromethyl)-5H-1,2,3-oxadiazol-3-ium-2-ide" [P]. US Patent, US 9855313 B2, 2017-06-01.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2014, 743, (10), 8349-8371.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2021, 1998, (1), 9458-9487.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Methoxyphenyl)-5-oxo-4-(trifluoromethyl)-5H-1,2,3-oxadiazol-3-ium-2-ide Using HRMS and NMR". Sci. Total Environ., 2014, 1517, (11), 6208-6214.
Lee J H, Choi Y S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2014, 1976, 7993-8016.