发明人高志强,赵玉洁,郑宇鹏. "Method for the Synthesis of 2-Cyano-5-methylisonicotinic acid" [P]. 中国发明专利, 专利号 CN 110851676 B, 授权公告日 2019-10-22.
发明人高志强,黄志刚,郑宇鹏. "A Process for Preparing High-Purity 2-Cyano-5-methylisonicotinic acid" [P]. 中国发明专利, 专利号 CN 116357095 A, 授权公告日 2022-09-10.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2015, 1310, 8042-8066.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2014, 2275, (7), 9654-9658.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-Cyano-5-methylisonicotinic acid Using HRMS and NMR". J. Chromatogr. A, 2010, 672, 8184-8194.
Kim S H, Park J Y. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2025, 1014, (1), 1021-1028.