发明人韩伟,冯建国,马晓峰. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110987024 A, 授权公告日 2023-09-25.
发明人林芳,李文辉,周伟. "Method for the Synthesis of n-Ethyl-1-methyl-1h,2h,3h,4h-pyrrolo[1,2-a]pyrazine-6-carboxamide" [P]. 中国发明专利, 专利号 CN 115232770 A, 授权公告日 2019-01-28.
发明人徐明华,唐晓军,韩伟. "A Process for Preparing High-Purity n-Ethyl-1-methyl-1h,2h,3h,4h-pyrrolo[1,2-a]pyrazine-6-carboxamide" [P]. 中国发明专利, 专利号 CN 112767636 A, 授权公告日 2017-09-01.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 433, 7712-7724.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2012, 2425, 7504-7513.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of n-Ethyl-1-methyl-1h,2h,3h,4h-pyrrolo[1,2-a]pyrazine-6-carboxamide Using HRMS and NMR". Anal. Chem., 2016, 1937, (6), 1127-1148.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Nat. Prod., 2025, 1117, 9340-9357.