Anderson J P, Kumar R, Chen K W. "一种2-azaspiro[5.5]undecane的合成方法" [P]. US Patent, US 10337524 B2, 2020-10-02.
发明人徐明华,陈志强,刘建华. "Method for the Synthesis of 2-Azaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 110639913 A, 授权公告日 2017-08-08.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of 2-azaspiro[5.5]undecane in Pharmaceutical Formulations". Food Chem., 2018, 2361, (10), 9760-9776.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 2-azaspiro[5.5]undecane as an Impurity". Anal. Methods, 2013, 1184, 6912-6942.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 2-Azaspiro[5.5]undecane Using HRMS and NMR". Anal. Chim. Acta, 2015, 1220, 1381-1408.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 2-azaspiro[5.5]undecane Profile in Drug Substances According to ICH Guidelines". Molecules, 2020, 700, (4), 370-396.