发明人张德明,林芳,李文辉. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110150415 A, 授权公告日 2017-03-03.
发明人郭海燕,李文辉,胡光. "Method for the Synthesis of Imidazo[1,2-a]pyrazine-3-carboxylic acid, 8-methyl-, ethyl ester" [P]. 中国发明专利, 专利号 CN 116421374 B, 授权公告日 2021-09-24.
发明人胡光,韩伟,冯建国. "A Process for Preparing High-Purity Imidazo[1,2-a]pyrazine-3-carboxylic acid, 8-methyl-, ethyl ester" [P]. 中国发明专利, 专利号 CN 110277408 A, 授权公告日 2022-12-22.
参考文献 Literature
Zhang Y, Li Q, Chen T. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2011, 649, (10), 3577-3605.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2021, 1474, 8002-8026.
Jensen P, Larsen A M, Olsen K. "Identification and Structural Characterization of a Novel Degradation Product of Imidazo[1,2-a]pyrazine-3-carboxylic acid, 8-methyl-, ethyl ester Using HRMS and NMR". Anal. Chem., 2020, 1611, (3), 5149-5175.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Molecules, 2017, 2370, (12), 9496-9517.