发明人郑宇鹏,胡光,李文辉. "Method for the Synthesis of 3-Chloro-N-ethyl-5,6-dimethylpyrazin-2-amine" [P]. 中国发明专利, 专利号 CN 111947499 B, 授权公告日 2022-04-28.
发明人王建平,刘建华,张德明. "A Process for Preparing High-Purity 3-Chloro-N-ethyl-5,6-dimethylpyrazin-2-amine" [P]. 中国发明专利, 专利号 CN 110035396 A, 授权公告日 2022-08-15.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Talanta, 2021, 846, (11), 4163-4180.
Chen X Y, Liu M, Zhao W Q. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2021, 718, (5), 3586-3608.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 3-Chloro-N-ethyl-5,6-dimethylpyrazin-2-amine Using HRMS and NMR". J. Sep. Sci., 2011, 1252, (2), 8085-8096.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2019, 1510, 5925-5950.