发明人孙丽萍,刘建华,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108929236 A, 授权公告日 2019-07-04.
发明人赵玉洁,钱学锋,李文辉. "Method for the Synthesis of (6S,7S)-7-(tert-Butoxycarbonyl)-5-azaspiro[2.5]octane-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 116867318 A, 授权公告日 2024-07-11.
发明人何建平,唐晓军,李文辉. "A Process for Preparing High-Purity (6S,7S)-7-(tert-Butoxycarbonyl)-5-azaspiro[2.5]octane-6-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108614348 A, 授权公告日 2017-06-24.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2014, 2141, (3), 5147-5159.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Sep. Sci., 2015, 2001, 531-537.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of (6S,7S)-7-(tert-Butoxycarbonyl)-5-azaspiro[2.5]octane-6-carboxylic acid Using HRMS and NMR". Sci. Total Environ., 2022, 1605, 2080-2085.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chemosphere, 2010, 2002, (4), 4254-4284.