发明人徐明华,郭海燕,罗永刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 115033501 A, 授权公告日 2018-10-10.
发明人周伟,赵玉洁,林芳. "Method for the Synthesis of 3-Ethylpiperazine-2,5-dione" [P]. 中国发明专利, 专利号 CN 111444300 B, 授权公告日 2019-10-28.
发明人胡光,马晓峰,李文辉. "A Process for Preparing High-Purity 3-Ethylpiperazine-2,5-dione" [P]. 中国发明专利, 专利号 CN 109170752 B, 授权公告日 2023-01-18.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2018, 2323, (1), 8954-8975.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2020, 668, (5), 6657-6679.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 3-Ethylpiperazine-2,5-dione Using HRMS and NMR". Anal. Chim. Acta, 2015, 107, 4916-4929.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Talanta, 2013, 2140, (11), 1908-1930.