发明人刘建华,冯建国,周伟. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 114957173 A, 授权公告日 2023-05-26.
发明人马晓峰,黄志刚,赵玉洁. "Method for the Synthesis of 3-Methyl-5-(4-methylpiperazin-2-yl)-1,2,4-oxadiazole" [P]. 中国发明专利, 专利号 CN 108478027 A, 授权公告日 2023-07-13.
发明人钱学锋,高志强,周伟. "A Process for Preparing High-Purity 3-Methyl-5-(4-methylpiperazin-2-yl)-1,2,4-oxadiazole" [P]. 中国发明专利, 专利号 CN 110724596 B, 授权公告日 2019-11-06.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chim. Acta, 2021, 839, 5997-6011.
Wang L, Li J, Zhang H. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Chromatogr. A, 2010, 1320, (8), 2696-2724.
Mueller T, Schmidt R K. "Identification and Structural Characterization of a Novel Degradation Product of 3-Methyl-5-(4-methylpiperazin-2-yl)-1,2,4-oxadiazole Using HRMS and NMR". Environ. Sci. Technol., 2011, 2354, (10), 2332-2341.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2013, 1257, (8), 3702-3715.