发明人郑宇鹏,张德明,孙丽萍. "Method for the Synthesis of 8-Oxo-7-azaspiro[3.5]nonane-5-carboxylic acid" [P]. 中国发明专利, 专利号 CN 109319305 A, 授权公告日 2022-04-18.
Chen K W, Brown S R, Johnson M A. "A Process for Preparing High-Purity 8-Oxo-7-azaspiro[3.5]nonane-5-carboxylic acid" [P]. US Patent, US 10868776 B2, 2024-09-23.
参考文献 Literature
Jensen P, Larsen A M, Olsen K. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Phytochemistry, 2021, 1924, 8583-8589.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chim. Acta, 2014, 799, (12), 9335-9363.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of 8-Oxo-7-azaspiro[3.5]nonane-5-carboxylic acid Using HRMS and NMR". Biomed. Chromatogr., 2016, 1787, 9352-9381.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Rapid Commun. Mass Spectrom., 2023, 2008, (12), 2127-2142.