发明人周伟,唐晓军,杨光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110652801 A, 授权公告日 2020-09-24.
发明人韩伟,钱学锋,李文辉. "Method for the Synthesis of 2-Cyclopropyl-N-methyl-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide" [P]. 中国发明专利, 专利号 CN 117026914 B, 授权公告日 2017-01-24.
发明人高志强,杨光,刘建华. "A Process for Preparing High-Purity 2-Cyclopropyl-N-methyl-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide" [P]. 中国发明专利, 专利号 CN 110430270 A, 授权公告日 2018-03-18.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2019, 1317, (12), 297-308.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2012, 2256, (11), 2168-2173.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of 2-Cyclopropyl-N-methyl-5H-pyrrolo[2,3-b]pyrazine-7-carboxamide Using HRMS and NMR". Sci. Total Environ., 2020, 1809, 4949-4957.
Zhang Y, Li Q, Chen T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2018, 2102, (7), 1200-1205.