发明人杨光,罗永刚,陈志强. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 110452368 A, 授权公告日 2025-08-22.
发明人刘建华,何建平,韩伟. "Method for the Synthesis of 4-Ethyl-3-methyl-2,5-dihydro-1H-pyrrol-2-one" [P]. 中国发明专利, 专利号 CN 109841178 A, 授权公告日 2019-11-07.
发明人陈志强,李文辉,周伟. "A Process for Preparing High-Purity 4-Ethyl-3-methyl-2,5-dihydro-1H-pyrrol-2-one" [P]. 中国发明专利, 专利号 CN 110362875 A, 授权公告日 2020-01-02.
参考文献 Literature
Martinez C, Lopez D R. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Pharm. Biomed. Anal., 2013, 1033, 1989-2017.
Yamamoto K, Tanaka H, Suzuki T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Chemosphere, 2022, 462, 4494-4497.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 4-Ethyl-3-methyl-2,5-dihydro-1H-pyrrol-2-one Using HRMS and NMR". J. Sep. Sci., 2025, 1465, 6541-6555.