发明人郭海燕,朱建伟,刘建华. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108796874 A, 授权公告日 2015-09-05.
Brown S R, Johnson M A, Roberts E F. "Method for the Synthesis of 4-(2-Methoxy-ethyl)-piperazine-1-carboxamidine hydrochloride" [P]. US Patent, US 9443560 B2, 2025-06-03.
发明人周伟,冯建国,张德明. "A Process for Preparing High-Purity 4-(2-Methoxy-ethyl)-piperazine-1-carboxamidine hydrochloride" [P]. 中国发明专利, 专利号 CN 111746304 B, 授权公告日 2017-11-16.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Biomed. Chromatogr., 2013, 1070, 5511-5535.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2025, 1304, (4), 2838-2843.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 4-(2-Methoxy-ethyl)-piperazine-1-carboxamidine hydrochloride Using HRMS and NMR". J. Nat. Prod., 2018, 1475, (3), 9155-9159.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2013, 1568, (8), 6217-6228.