Stevens L M, Mueller T, Brown S R. "一种的合成方法" [P]. US Patent, US 10814662 B2, 2015-03-07.
发明人韩伟,郭海燕,胡光. "Method for the Synthesis of 2-Oxa-9-azaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 111588992 B, 授权公告日 2018-07-03.
发明人李文辉,周伟,王建平. "A Process for Preparing High-Purity 2-Oxa-9-azaspiro[5.5]undecane" [P]. 中国发明专利, 专利号 CN 111340003 B, 授权公告日 2022-05-06.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2022, 339, (9), 8099-8124.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2018, 962, 2405-2431.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2-Oxa-9-azaspiro[5.5]undecane Using HRMS and NMR". Phytochemistry, 2011, 501, (3), 7783-7789.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2025, 1433, 3554-3569.