发明人何建平,冯建国,孙丽萍. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115706693 A, 授权公告日 2020-12-22.
发明人张德明,韩伟,胡光. "Method for the Synthesis of 3-oxa-9-azaspiro[5.5]undecane;hydrochloride" [P]. 中国发明专利, 专利号 CN 113073262 B, 授权公告日 2017-06-15.
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 in Pharmaceutical Formulations". J. Nat. Prod., 2017, 1700, (7), 3918-3928.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2022, 1205, (10), 461-485.
Chen X Y, Liu M, Zhao W Q. "Identification and Structural Characterization of a Novel Degradation Product of 3-oxa-9-azaspiro[5.5]undecane;hydrochloride Using HRMS and NMR". Anal. Chem., 2024, 1903, 2118-2128.