发明人韩伟,钱学锋,郭海燕. "Method for the Synthesis of 1-(6-(5-Amino-3-methylpyrazin-2-yl)pyridin-3-yl)cyclobutanecarbonitrile" [P]. 中国发明专利, 专利号 CN 115679880 B, 授权公告日 2018-12-13.
发明人陈志强,李文辉,冯建国. "A Process for Preparing High-Purity 1-(6-(5-Amino-3-methylpyrazin-2-yl)pyridin-3-yl)cyclobutanecarbonitrile" [P]. 中国发明专利, 专利号 CN 112915295 A, 授权公告日 2025-07-19.
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". Rapid Commun. Mass Spectrom., 2023, 2250, (10), 5782-5802.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Biomed. Chromatogr., 2025, 311, (1), 380-392.
O'Brien K, Kennedy M L. "Identification and Structural Characterization of a Novel Degradation Product of 1-(6-(5-Amino-3-methylpyrazin-2-yl)pyridin-3-yl)cyclobutanecarbonitrile Using HRMS and NMR". J. Pharm. Biomed. Anal., 2016, 2234, (1), 5958-5987.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2025, 517, 6346-6373.