Park J H, Johnson M A, Fischer A B. "一种的合成方法" [P]. US Patent, US 9820928 B2, 2021-08-06.
Hughes D C, Yamamoto T, Fischer A B. "Method for the Synthesis of 2-(Aminomethyl)-3-cyano-5-(difluoromethyl)pyridine-4-carboxylic acid" [P]. US Patent, US 11311991 B2, 2020-07-11.
发明人孙丽萍,何建平,唐晓军. "A Process for Preparing High-Purity 2-(Aminomethyl)-3-cyano-5-(difluoromethyl)pyridine-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112705459 A, 授权公告日 2020-11-15.
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". Phytochemistry, 2013, 1056, (4), 2231-2242.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2014, 2130, (10), 3259-3274.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 2-(Aminomethyl)-3-cyano-5-(difluoromethyl)pyridine-4-carboxylic acid Using HRMS and NMR". Molecules, 2011, 1669, (11), 8254-8279.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2019, 1926, (12), 8422-8436.