发明人孙丽萍,高志强,林芳. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114374535 A, 授权公告日 2018-01-17.
发明人李文辉,孙丽萍,钱学锋. "Method for the Synthesis of 6-(6-Chloropyridin-3-yl)-8-oxo-5,7-diazaspiro[3.4]Oct-5-ene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108101891 B, 授权公告日 2021-05-21.
发明人孙丽萍,徐明华,周伟. "A Process for Preparing High-Purity 6-(6-Chloropyridin-3-yl)-8-oxo-5,7-diazaspiro[3.4]Oct-5-ene-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112036187 B, 授权公告日 2016-12-16.
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". J. Agric. Food Chem., 2025, 358, 422-441.
Jensen P, Larsen A M, Olsen K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chromatographia, 2020, 1279, (1), 8603-8620.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of 6-(6-Chloropyridin-3-yl)-8-oxo-5,7-diazaspiro[3.4]Oct-5-ene-2-carboxylic acid Using HRMS and NMR". Molecules, 2019, 1695, (4), 3953-3971.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2011, 1875, (11), 4818-4839.