Klinger H, Stevens L M, Patel M V. "Method for the Synthesis of 2',4'-Difluoro-[1,1'-biphenyl]-4-carboxylic acid" [P]. US Patent, US 10828371 B2, 2018-12-16.
Davis P L, Fischer A B, Patel M V. "A Process for Preparing High-Purity 2',4'-Difluoro-[1,1'-biphenyl]-4-carboxylic acid" [P]. US Patent, US 10005812 B2, 2025-01-13.
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". Chromatographia, 2016, 1274, 2707-2720.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2021, 2325, (1), 3618-3626.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 2',4'-Difluoro-[1,1'-biphenyl]-4-carboxylic acid Using HRMS and NMR". Molecules, 2011, 480, (5), 8066-8070.