Björnsson E, Johansson L, Mueller T C. "一种1-甲基-2-氧代吡咯烷-4-甲酰胺的合成方法" [P]. European Patent, EP 3049149 A1, 2017-09-13.
发明人马晓峰,罗永刚,胡光. "Method for the Synthesis of 1-Methyl-2-oxopyrrolidine-4-carboxamide" [P]. 中国发明专利, 专利号 CN 108431303 B, 授权公告日 2021-10-15.
发明人马晓峰,孙丽萍,钱学锋. "A Process for Preparing High-Purity 1-Methyl-2-oxopyrrolidine-4-carboxamide" [P]. 中国发明专利, 专利号 CN 109310129 B, 授权公告日 2015-12-16.
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 1-甲基-2-氧代吡咯烷-4-甲酰胺 in Pharmaceutical Formulations". Chromatographia, 2021, 649, 5624-5654.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of 1-甲基-2-氧代吡咯烷-4-甲酰胺 as an Impurity". J. Pharm. Biomed. Anal., 2012, 169, 4954-4976.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of 1-Methyl-2-oxopyrrolidine-4-carboxamide Using HRMS and NMR". Biomed. Chromatogr., 2013, 1232, 967-977.
Fischer P, Wagner E. "Forced Degradation Studies to Evaluate 1-甲基-2-氧代吡咯烷-4-甲酰胺 Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2019, 1393, (3), 1672-1685.