发明人赵玉洁,王建平,张德明. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109649581 A, 授权公告日 2025-04-07.
Jørgensen K, Johansson L, Nowak P. "Method for the Synthesis of (5R,9S)-Tert-butyl 9-(furan-2-yl)-6-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate" [P]. European Patent, EP 3811616 A1, 2016-06-27.
发明人周伟,马晓峰,韩伟. "A Process for Preparing High-Purity (5R,9S)-Tert-butyl 9-(furan-2-yl)-6-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate" [P]. 中国发明专利, 专利号 CN 116911187 A, 授权公告日 2019-11-12.
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". Sci. Total Environ., 2010, 1143, 8993-9022.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2024, 2078, (9), 5607-5636.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of (5R,9S)-Tert-butyl 9-(furan-2-yl)-6-oxo-2,7-diazaspiro[4.4]nonane-2-carboxylate Using HRMS and NMR". Chromatographia, 2020, 2068, 768-781.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 1809, (3), 5176-5193.