Thompson G K, Mueller T, Johnson M A. "Method for the Synthesis of 5-[4-(trifluoromethoxy)phenyl]thiophene-2-carboxylic acid" [P]. US Patent, US 9268136 B2, 2024-05-12.
Mueller T C, Jørgensen K, Martínez F. "A Process for Preparing High-Purity 5-[4-(trifluoromethoxy)phenyl]thiophene-2-carboxylic acid" [P]. European Patent, EP 3394165 A1, 2019-10-10.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2017, 1894, (5), 1283-1289.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2024, 775, 7865-7882.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 5-[4-(trifluoromethoxy)phenyl]thiophene-2-carboxylic acid Using HRMS and NMR". Rapid Commun. Mass Spectrom., 2019, 1723, (3), 9942-9947.