Jørgensen K, Johansson L, Kowalski A. "一种的合成方法" [P]. European Patent, EP 3166305 A1, 2022-11-20.
发明人马晓峰,郑宇鹏,陈志强. "Method for the Synthesis of Ethyl 5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine-2-carboxylate dihydrochloride hydrate" [P]. 中国发明专利, 专利号 CN 115741934 A, 授权公告日 2023-07-12.
Lee S K, Patel M V, Kumar R. "A Process for Preparing High-Purity Ethyl 5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine-2-carboxylate dihydrochloride hydrate" [P]. US Patent, US 10276051 B2, 2017-11-12.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2012, 97, (8), 6696-6723.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2021, 602, 5148-5154.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine-2-carboxylate dihydrochloride hydrate Using HRMS and NMR". Phytochemistry, 2022, 202, 1194-1205.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Agric. Food Chem., 2011, 549, 4261-4291.