Lefèvre J P, Nielsen H, Sørensen M. "Method for the Synthesis of 3-Chloro-4-(difluoromethoxy)pyridin-2-amine" [P]. European Patent, EP 3089960 A1, 2024-06-19.
Yamamoto T, Anderson J P, Kumar R. "A Process for Preparing High-Purity 3-Chloro-4-(difluoromethoxy)pyridin-2-amine" [P]. US Patent, US 11770322 B2, 2022-05-04.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2013, 472, (12), 7776-7806.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2014, 1290, 3923-3927.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3-Chloro-4-(difluoromethoxy)pyridin-2-amine Using HRMS and NMR". Chemosphere, 2011, 1191, 1402-1408.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2016, 1412, (8), 8879-8896.