Davis P L, Park J H, Stevens L M. "一种的合成方法" [P]. US Patent, US 11008267 B2, 2025-05-03.
发明人胡光,韩伟,唐晓军. "Method for the Synthesis of tert-Butyl 5-oxa-2,8-diazaspiro[3.5]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115082192 A, 授权公告日 2024-12-28.
发明人周伟,孙丽萍,何建平. "A Process for Preparing High-Purity tert-Butyl 5-oxa-2,8-diazaspiro[3.5]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116013852 A, 授权公告日 2017-11-23.
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". Chromatographia, 2016, 1511, (5), 5388-5410.
Martinez C, Lopez D R. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2019, 1940, (1), 288-310.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 5-oxa-2,8-diazaspiro[3.5]nonane-2-carboxylate Using HRMS and NMR". Biomed. Chromatogr., 2023, 2164, (8), 253-262.