发明人刘建华,杨光,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110938873 A, 授权公告日 2022-12-28.
Lee S K, Patel M V, Williams B T. "Method for the Synthesis of 6-Oxo-5-azaspiro[2.4]heptane-4-carboxylic acid" [P]. US Patent, US 10941475 B2, 2023-02-10.
发明人高志强,赵玉洁,陈志强. "A Process for Preparing High-Purity 6-Oxo-5-azaspiro[2.4]heptane-4-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108234531 A, 授权公告日 2020-04-12.
参考文献 Literature
Lee J H, Choi Y S. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Molecules, 2011, 2383, 259-267.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2013, 2039, (11), 4513-4537.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of 6-Oxo-5-azaspiro[2.4]heptane-4-carboxylic acid Using HRMS and NMR". J. Chromatogr. A, 2021, 1618, (2), 2560-2581.