发明人高志强,唐晓军,朱建伟. "Method for the Synthesis of 2-Amino-4-oxo-1-azaspiro[4.5]dec-2-ene-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109127289 B, 授权公告日 2020-02-26.
发明人刘建华,孙丽萍,钱学锋. "A Process for Preparing High-Purity 2-Amino-4-oxo-1-azaspiro[4.5]dec-2-ene-3-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112636267 A, 授权公告日 2022-09-16.
参考文献 Literature
Chen X Y, Liu M, Zhao W Q. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Sep. Sci., 2017, 1679, (3), 2335-2363.
Xu M, Hu Y, Zhou D. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2014, 595, 8654-8677.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 2-Amino-4-oxo-1-azaspiro[4.5]dec-2-ene-3-carboxylic acid Using HRMS and NMR". Anal. Chim. Acta, 2010, 1819, (3), 1404-1411.