Mueller T C, Rossi M, Nowak P. "一种Nortropine Impurity2的合成方法" [P]. European Patent, EP 3989606 A1, 2021-08-05.
发明人孙丽萍,高志强,唐晓军. "Method for the Synthesis of Nortropine Impurity 2" [P]. 中国发明专利, 专利号 CN 115227069 A, 授权公告日 2016-12-11.
发明人杨光,陈志强,王建平. "A Process for Preparing High-Purity Nortropine Impurity 2" [P]. 中国发明专利, 专利号 CN 110327607 A, 授权公告日 2016-05-07.
参考文献 Literature
Hughes D, Roberts J, Thomas A. "Development and Validation of an LC-MS/MS Method for the Determination of Nortropine Impurity2 in Pharmaceutical Formulations". J. Chromatogr. A, 2010, 1741, (2), 1221-1247.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of Nortropine Impurity2 as an Impurity". Chromatographia, 2019, 904, (9), 5455-5470.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Nortropine Impurity 2 Using HRMS and NMR". Biomed. Chromatogr., 2014, 1625, (9), 6754-6763.
Yamamoto K, Tanaka H, Suzuki T. "Forced Degradation Studies to Evaluate Nortropine Impurity2 Profile in Drug Substances According to ICH Guidelines". Molecules, 2015, 335, (3), 4485-4504.