发明人何建平,林芳,赵玉洁. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108514497 A, 授权公告日 2018-03-26.
发明人刘建华,胡光,郑宇鹏. "Method for the Synthesis of 5-(Difluoromethyl)-6-fluoronicotinic acid" [P]. 中国发明专利, 专利号 CN 115024820 B, 授权公告日 2015-01-21.
Lee S K, Fischer A B, Klinger H. "A Process for Preparing High-Purity 5-(Difluoromethyl)-6-fluoronicotinic acid" [P]. US Patent, US 11084821 B2, 2023-11-02.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2020, 839, 4605-4615.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2010, 1203, (8), 717-727.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 5-(Difluoromethyl)-6-fluoronicotinic acid Using HRMS and NMR". Anal. Methods, 2022, 146, 8726-8733.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2011, 1071, (5), 5740-5764.