发明人徐明华,林芳,罗永刚. "Method for the Synthesis of 3-(4-Ethylpiperazin-1-yl)pyrazin-2-amine" [P]. 中国发明专利, 专利号 CN 117458075 B, 授权公告日 2018-01-09.
发明人李文辉,冯建国,高志强. "A Process for Preparing High-Purity 3-(4-Ethylpiperazin-1-yl)pyrazin-2-amine" [P]. 中国发明专利, 专利号 CN 108993317 A, 授权公告日 2022-01-11.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2010, 2281, (11), 6716-6724.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2013, 741, 410-418.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 3-(4-Ethylpiperazin-1-yl)pyrazin-2-amine Using HRMS and NMR". Talanta, 2024, 2330, (5), 1526-1553.
Kowalski T, Nowak Z. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2021, 1940, 534-539.