Sørensen M, Nielsen H, Mueller T C. "Method for the Synthesis of 2-(Difluoromethyl)-5-fluoro-4-(trifluoromethyl)pyridine-3-acetic acid" [P]. European Patent, EP 3146793 A1, 2018-02-23.
发明人韩伟,林芳,郑宇鹏. "A Process for Preparing High-Purity 2-(Difluoromethyl)-5-fluoro-4-(trifluoromethyl)pyridine-3-acetic acid" [P]. 中国发明专利, 专利号 CN 115419918 B, 授权公告日 2021-01-04.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2022, 2402, 3009-3037.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Pharm. Biomed. Anal., 2011, 2465, (4), 1633-1661.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Difluoromethyl)-5-fluoro-4-(trifluoromethyl)pyridine-3-acetic acid Using HRMS and NMR". J. Sep. Sci., 2020, 906, (10), 1232-1237.