Schröder R, Nielsen H, Mueller T C. "一种的合成方法" [P]. European Patent, EP 3630996 A1, 2016-04-16.
Williams B T, Kumar R, Roberts E F. "Method for the Synthesis of 6-((5-Cyanopyrazin-2-yl)amino)-4-((1-methylpiperidin-4-yl)amino)nicotinic acid" [P]. US Patent, US 11233562 B2, 2017-08-18.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 1703, 6854-6865.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2012, 1608, 7304-7322.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 6-((5-Cyanopyrazin-2-yl)amino)-4-((1-methylpiperidin-4-yl)amino)nicotinic acid Using HRMS and NMR". Environ. Sci. Technol., 2013, 906, 2629-2658.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2017, 1561, 3107-3136.