发明人郑宇鹏,罗永刚,胡光. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 109445245 A, 授权公告日 2022-03-15.
发明人郭海燕,罗永刚,何建平. "Method for the Synthesis of (2S)-5-Oxo-1-(3-oxo-1,3-dihydro-2-benzofuran-1-yl)pyrrolidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 111033918 A, 授权公告日 2015-05-14.
发明人孙丽萍,何建平,马晓峰. "A Process for Preparing High-Purity (2S)-5-Oxo-1-(3-oxo-1,3-dihydro-2-benzofuran-1-yl)pyrrolidine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 112969030 B, 授权公告日 2015-12-04.
参考文献 Literature
Xu M, Hu Y, Zhou D. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Methods, 2010, 2315, (8), 1922-1946.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2018, 1069, (8), 9009-9029.
Kowalski T, Nowak Z. "Identification and Structural Characterization of a Novel Degradation Product of (2S)-5-Oxo-1-(3-oxo-1,3-dihydro-2-benzofuran-1-yl)pyrrolidine-2-carboxylic acid Using HRMS and NMR". Phytochemistry, 2021, 1567, (1), 6361-6383.
Xu M, Hu Y, Zhou D. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Chromatographia, 2025, 2231, (6), 3345-3366.