发明人冯建国,林芳,赵玉洁. "Method for the Synthesis of 2-[2-(4-Difluoromethoxy-phenyl)-2-oxo-ethylsulfanyl]-benzoic acid" [P]. 中国发明专利, 专利号 CN 112713344 A, 授权公告日 2023-11-19.
Johansson L, Martínez F, Lefèvre J P. "A Process for Preparing High-Purity 2-[2-(4-Difluoromethoxy-phenyl)-2-oxo-ethylsulfanyl]-benzoic acid" [P]. European Patent, EP 3885772 A1, 2022-05-14.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 2-[2-(4-Difluoromethoxy-phenyl)-2-oxo-ethylsulfanyl]-benzoic acid in Pharmaceutical Formulations". Molecules, 2019, 992, (1), 5237-5246.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-[2-(4-Difluoromethoxy-phenyl)-2-oxo-ethylsulfanyl]-benzoic acid as an Impurity". Rapid Commun. Mass Spectrom., 2021, 1065, 1340-1344.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-[2-(4-Difluoromethoxy-phenyl)-2-oxo-ethylsulfanyl]-benzoic acid Using HRMS and NMR". J. Chromatogr. A, 2017, 1365, (7), 8471-8495.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate 2-[2-(4-Difluoromethoxy-phenyl)-2-oxo-ethylsulfanyl]-benzoic acid Profile in Drug Substances According to ICH Guidelines". Food Chem., 2017, 177, (7), 9470-9500.