O'Brien P Q, Roberts E F, Williams B T. "一种的合成方法" [P]. US Patent, US 10456749 B2, 2020-11-05.
Björnsson E, Rossi M, Johansson L. "Method for the Synthesis of 2-Amino-5-(difluoromethyl)benzoic acid" [P]. European Patent, EP 3206190 A1, 2015-11-25.
Jørgensen K, Lefèvre J P, Martínez F. "A Process for Preparing High-Purity 2-Amino-5-(difluoromethyl)benzoic acid" [P]. European Patent, EP 3358688 A1, 2017-04-05.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2021, 1446, 376-388.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2014, 266, (12), 2308-2334.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-5-(difluoromethyl)benzoic acid Using HRMS and NMR". Sci. Total Environ., 2017, 348, (8), 7892-7920.