Martínez F, Schröder R, Björnsson E. "Method for the Synthesis of 5-(2,2,2-trifluoro-1,1-dimethyl-ethyl)-1,2,4-oxadiazole-3-carbonyl chloride" [P]. European Patent, EP 3801373 A1, 2017-05-03.
Fischer A B, Lee S K, Johnson M A. "A Process for Preparing High-Purity 5-(2,2,2-trifluoro-1,1-dimethyl-ethyl)-1,2,4-oxadiazole-3-carbonyl chloride" [P]. US Patent, US 10854825 B2, 2024-05-01.
参考文献 Literature
Kim S H, Park J Y. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2024, 1701, (1), 213-240.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Agric. Food Chem., 2015, 836, (11), 253-257.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 5-(2,2,2-trifluoro-1,1-dimethyl-ethyl)-1,2,4-oxadiazole-3-carbonyl chloride Using HRMS and NMR". J. Chromatogr. A, 2021, 408, (3), 2018-2048.
Mueller T, Schmidt R K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2020, 1323, 488-503.