Nowak P, Jørgensen K, Johansson L. "一种的合成方法" [P]. European Patent, EP 3158412 A1, 2023-02-28.
发明人沈红梅,陈志强,张德明. "Method for the Synthesis of 9-Benzyl-1-oxa-4,9-diazaspiro[5.5]Undecan-3-one" [P]. 中国发明专利, 专利号 CN 117391546 B, 授权公告日 2023-04-20.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Environ. Sci. Technol., 2021, 1618, (6), 8445-8469.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 2144, (7), 5069-5082.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 9-Benzyl-1-oxa-4,9-diazaspiro[5.5]Undecan-3-one Using HRMS and NMR". J. Chromatogr. A, 2016, 1063, (12), 1446-1475.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2014, 2462, (4), 6551-6560.