发明人韩伟,沈红梅,钱学锋. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 112907659 A, 授权公告日 2020-01-20.
发明人张德明,李文辉,沈红梅. "Method for the Synthesis of Methyl 2-methyl-5-oxopyrrolidine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115043293 A, 授权公告日 2018-09-04.
发明人徐明华,郭海燕,杨光. "A Process for Preparing High-Purity Methyl 2-methyl-5-oxopyrrolidine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115887458 B, 授权公告日 2019-06-01.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chemosphere, 2011, 1286, (5), 5394-5424.
Hughes D, Roberts J, Thomas A. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Environ. Sci. Technol., 2013, 662, 1170-1175.
Wang L, Li J, Zhang H. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 2-methyl-5-oxopyrrolidine-2-carboxylate Using HRMS and NMR". Anal. Chem., 2011, 1534, (1), 6682-6712.