Mueller T C, Nielsen H, Björnsson E. "一种的合成方法" [P]. European Patent, EP 3924362 A1, 2023-07-28.
发明人李文辉,王建平,唐晓军. "Method for the Synthesis of 2-(4-Ethylpiperazino)isonicotinonitrile" [P]. 中国发明专利, 专利号 CN 117662882 A, 授权公告日 2018-09-02.
发明人黄志刚,杨光,赵玉洁. "A Process for Preparing High-Purity 2-(4-Ethylpiperazino)isonicotinonitrile" [P]. 中国发明专利, 专利号 CN 110715509 A, 授权公告日 2021-08-12.
参考文献 Literature
Mueller T, Schmidt R K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2011, 1756, (11), 246-262.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2013, 1376, (4), 954-970.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 2-(4-Ethylpiperazino)isonicotinonitrile Using HRMS and NMR". Anal. Chem., 2017, 2420, (4), 3370-3387.
Wang L, Li J, Zhang H. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2016, 1533, (1), 6697-6717.