发明人韩伟,周伟,刘建华. "Method for the Synthesis of 2,3-Diethyl-5-methylpyrazine-N1-oxide" [P]. 中国发明专利, 专利号 CN 112261335 B, 授权公告日 2015-06-26.
发明人李文辉,黄志刚,张德明. "A Process for Preparing High-Purity 2,3-Diethyl-5-methylpyrazine-N1-oxide" [P]. 中国发明专利, 专利号 CN 114126489 A, 授权公告日 2022-12-10.
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". J. Pharm. Biomed. Anal., 2011, 1103, (6), 7425-7449.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Chem., 2011, 164, (12), 9080-9100.
Lee J H, Choi Y S. "Identification and Structural Characterization of a Novel Degradation Product of 2,3-Diethyl-5-methylpyrazine-N1-oxide Using HRMS and NMR". Phytochemistry, 2011, 1798, (5), 7526-7544.