Hughes D C, Thompson G K, Chen K W. "一种的合成方法" [P]. US Patent, US 9850343 B2, 2021-06-22.
发明人孙丽萍,张德明,黄志刚. "Method for the Synthesis of tert-butyl 3-(tosyloxy)-1-oxa-7-azaspiro[4.4]nonane-7-carboxylate" [P]. 中国发明专利, 专利号 CN 108348268 A, 授权公告日 2024-11-14.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2024, 1138, 4587-4600.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2025, 741, (6), 7607-7617.
Kim S H, Park J Y. "Identification and Structural Characterization of a Novel Degradation Product of tert-butyl 3-(tosyloxy)-1-oxa-7-azaspiro[4.4]nonane-7-carboxylate Using HRMS and NMR". Anal. Chim. Acta, 2024, 1615, (5), 295-299.
Zhou X P, Huang L, Wu G. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2023, 397, (11), 9972-9983.