发明人马晓峰,杨光,林芳. "Method for the Synthesis of 4-(2,3-Difluorophenyl)-3-fluorobenzoic acid" [P]. 中国发明专利, 专利号 CN 114956477 A, 授权公告日 2017-03-17.
发明人郭海燕,黄志刚,高志强. "A Process for Preparing High-Purity 4-(2,3-Difluorophenyl)-3-fluorobenzoic acid" [P]. 中国发明专利, 专利号 CN 112988577 A, 授权公告日 2025-04-01.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2019, 220, 6637-6662.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2016, 300, (7), 2283-2298.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2,3-Difluorophenyl)-3-fluorobenzoic acid Using HRMS and NMR". J. Sep. Sci., 2019, 180, 1545-1557.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Chromatogr. A, 2021, 538, (1), 2358-2382.