Martínez F, Schröder R, Sørensen M. "一种的合成方法" [P]. European Patent, EP 3603741 A1, 2016-04-21.
发明人陈志强,何建平,孙丽萍. "Method for the Synthesis of Tert-butyl (7S)-7-cyano-1-oxo-2,5-diazaspiro[3.4]Octane-5-carboxylate" [P]. 中国发明专利, 专利号 CN 111400584 B, 授权公告日 2015-04-11.
Jørgensen K, Sørensen M, Nowak P. "A Process for Preparing High-Purity Tert-butyl (7S)-7-cyano-1-oxo-2,5-diazaspiro[3.4]Octane-5-carboxylate" [P]. European Patent, EP 3589406 A1, 2024-02-01.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2014, 470, 835-865.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2011, 1605, 2964-2970.