Brown S R, Klinger H, Roberts E F. "一种的合成方法" [P]. US Patent, US 10975551 B2, 2018-05-14.
Lee S K, Davis P L, Chen K W. "Method for the Synthesis of Ethyl 2,3-difluoroisonicotinate" [P]. US Patent, US 11349558 B2, 2017-05-07.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2010, 2181, (7), 4377-4393.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2020, 1541, 5211-5226.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 2,3-difluoroisonicotinate Using HRMS and NMR". Environ. Sci. Technol., 2019, 1579, (6), 2197-2203.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2014, 1589, (7), 791-805.