发明人刘建华,高志强,冯建国. "Method for the Synthesis of 5-Oxa-2-azaspiro[3.4]octane Hydrochloride" [P]. 中国发明专利, 专利号 CN 110914877 A, 授权公告日 2022-10-02.
发明人高志强,杨光,李文辉. "A Process for Preparing High-Purity 5-Oxa-2-azaspiro[3.4]octane Hydrochloride" [P]. 中国发明专利, 专利号 CN 116489926 A, 授权公告日 2023-08-22.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 5-氧杂-2-氮杂螺[3.4]辛烷盐酸盐 in Pharmaceutical Formulations". Anal. Chem., 2017, 1614, (2), 850-871.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 5-氧杂-2-氮杂螺[3.4]辛烷盐酸盐 as an Impurity". Chemosphere, 2012, 2373, (9), 7679-7704.
Garcia M, Rodriguez P. "Identification and Structural Characterization of a Novel Degradation Product of 5-Oxa-2-azaspiro[3.4]octane Hydrochloride Using HRMS and NMR". J. Sep. Sci., 2020, 1496, (12), 3057-3086.