发明人孙丽萍,徐明华,沈红梅. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114015925 A, 授权公告日 2025-07-04.
Rossi M, Björnsson E, Sørensen M. "Method for the Synthesis of 2-Azaspiro[4.4]nonane-4-carboxylic acid" [P]. European Patent, EP 3854243 A1, 2022-05-22.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2010, 385, (11), 8389-8392.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2017, 951, (5), 220-240.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 2-Azaspiro[4.4]nonane-4-carboxylic acid Using HRMS and NMR". Molecules, 2015, 2042, (2), 5794-5805.
Yang F, Sun W, Liu J. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2021, 239, (7), 4356-4372.