Anderson J P, Stevens L M, Davis P L. "一种的合成方法" [P]. US Patent, US 11482733 B2, 2024-02-06.
发明人林芳,罗永刚,王建平. "Method for the Synthesis of 9-Methyl-1-oxa-4,9-diazaspiro[5.5]undecane dihydrochloride" [P]. 中国发明专利, 专利号 CN 113262935 A, 授权公告日 2017-02-22.
发明人孙丽萍,唐晓军,高志强. "A Process for Preparing High-Purity 9-Methyl-1-oxa-4,9-diazaspiro[5.5]undecane dihydrochloride" [P]. 中国发明专利, 专利号 CN 110591670 A, 授权公告日 2016-09-22.
参考文献 Literature
Kowalski T, Nowak Z. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2019, 477, (10), 6357-6371.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2024, 1837, 5974-6003.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 9-Methyl-1-oxa-4,9-diazaspiro[5.5]undecane dihydrochloride Using HRMS and NMR". J. Chromatogr. A, 2020, 2258, (5), 6460-6486.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Sci. Total Environ., 2017, 822, (6), 5483-5506.