Kowalski A, Martínez F, Sørensen M. "Method for the Synthesis of 6-(3,5-Difluorophenyl)-nicotinic acid" [P]. European Patent, EP 3528773 A1, 2023-08-17.
Nielsen H, Lefèvre J P, Schröder R. "A Process for Preparing High-Purity 6-(3,5-Difluorophenyl)-nicotinic acid" [P]. European Patent, EP 3520721 A1, 2015-03-10.
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". J. Sep. Sci., 2017, 408, 385-398.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2011, 1846, (4), 871-897.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 6-(3,5-Difluorophenyl)-nicotinic acid Using HRMS and NMR". Phytochemistry, 2016, 813, 8801-8826.