Patel M V, Davis P L, Schröder R. "Method for the Synthesis of 4-Cyano-2,5-difluorobenzoic acid" [P]. US Patent, US 9040022 B2, 2023-04-23.
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". Anal. Chim. Acta, 2014, 1104, (1), 8727-8749.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2025, 896, 5159-5168.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 4-Cyano-2,5-difluorobenzoic acid Using HRMS and NMR". J. Chromatogr. A, 2019, 460, (5), 416-433.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Phytochemistry, 2014, 1675, 4636-4663.