Johansson L, Nowak P, Lefèvre J P. "一种的合成方法" [P]. European Patent, EP 3276578 A1, 2015-01-08.
发明人罗永刚,李文辉,孙丽萍. "Method for the Synthesis of 8-Oxa-4-azaspiro[2.6]nonane hydrochloride" [P]. 中国发明专利, 专利号 CN 116985770 B, 授权公告日 2023-10-16.
Brown S R, Lee S K, Williams B T. "A Process for Preparing High-Purity 8-Oxa-4-azaspiro[2.6]nonane hydrochloride" [P]. US Patent, US 11350962 B2, 2018-03-15.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2024, 2220, (2), 9150-9179.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2014, 573, (6), 181-200.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 8-Oxa-4-azaspiro[2.6]nonane hydrochloride Using HRMS and NMR". Anal. Chim. Acta, 2022, 1403, (4), 3654-3658.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2023, 657, 2636-2664.