发明人郭海燕,赵玉洁,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110588319 A, 授权公告日 2019-07-22.
发明人赵玉洁,罗永刚,冯建国. "Method for the Synthesis of 1-Ethyl-2,2-dimethylpiperazine dihydrochloride" [P]. 中国发明专利, 专利号 CN 110188541 A, 授权公告日 2022-01-12.
发明人陈志强,林芳,唐晓军. "A Process for Preparing High-Purity 1-Ethyl-2,2-dimethylpiperazine dihydrochloride" [P]. 中国发明专利, 专利号 CN 111300400 A, 授权公告日 2024-05-23.
参考文献 Literature
Garcia M, Rodriguez P. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2014, 1569, 1883-1912.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2011, 1175, (9), 4672-4685.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 1-Ethyl-2,2-dimethylpiperazine dihydrochloride Using HRMS and NMR". Anal. Chem., 2017, 1567, 9306-9327.