发明人周伟,张德明,黄志刚. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 108870000 A, 授权公告日 2019-02-17.
发明人韩伟,刘建华,何建平. "Method for the Synthesis of 4-Nitrophenyl 4-ethylpiperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 112627606 B, 授权公告日 2018-12-15.
发明人冯建国,唐晓军,孙丽萍. "A Process for Preparing High-Purity 4-Nitrophenyl 4-ethylpiperazine-1-carboxylate" [P]. 中国发明专利, 专利号 CN 116001270 A, 授权公告日 2019-06-10.
参考文献 Literature
O'Brien K, Kennedy M L. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Chromatographia, 2012, 294, 4556-4568.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2017, 2129, 9129-9152.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of 4-Nitrophenyl 4-ethylpiperazine-1-carboxylate Using HRMS and NMR". Anal. Methods, 2021, 1711, 8650-8669.
Martinez C, Lopez D R. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2011, 2043, (10), 9990-9995.