发明人陈志强,钱学锋,郑宇鹏. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 111436079 A, 授权公告日 2022-03-18.
发明人高志强,沈红梅,孙丽萍. "Method for the Synthesis of 4-(Hydroxymethyl)-1-methyl-5-(thiophen-2-yl)pyrrolidin-2-one" [P]. 中国发明专利, 专利号 CN 115340055 A, 授权公告日 2025-04-14.
发明人高志强,刘建华,孙丽萍. "A Process for Preparing High-Purity 4-(Hydroxymethyl)-1-methyl-5-(thiophen-2-yl)pyrrolidin-2-one" [P]. 中国发明专利, 专利号 CN 110552358 A, 授权公告日 2025-09-12.
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". Food Chem., 2016, 1731, (7), 2621-2626.
Fischer P, Wagner E. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2016, 2336, (8), 2222-2235.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-(Hydroxymethyl)-1-methyl-5-(thiophen-2-yl)pyrrolidin-2-one Using HRMS and NMR". J. Sep. Sci., 2020, 1477, 6131-6136.
Chen X Y, Liu M, Zhao W Q. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2021, 2252, (2), 185-208.