发明人张德明,唐晓军,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117270497 A, 授权公告日 2015-10-01.
发明人高志强,冯建国,孙丽萍. "Method for the Synthesis of tert-Butyl 2-oxa-5,8-diazaspiro[3.5]nonane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 108138714 B, 授权公告日 2025-06-25.
发明人何建平,胡光,刘建华. "A Process for Preparing High-Purity tert-Butyl 2-oxa-5,8-diazaspiro[3.5]nonane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 117620524 A, 授权公告日 2016-11-19.
参考文献 Literature
Brown R C, Davis S M. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2024, 2119, (3), 4793-4819.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Molecules, 2019, 680, 7881-7888.
Yang F, Sun W, Liu J. "Identification and Structural Characterization of a Novel Degradation Product of tert-Butyl 2-oxa-5,8-diazaspiro[3.5]nonane-5-carboxylate Using HRMS and NMR". Anal. Methods, 2015, 1855, 4504-4526.