发明人何建平,高志强,赵玉洁. "Method for the Synthesis of Methyl 3-amino-5-ethylpyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 110213067 B, 授权公告日 2023-06-04.
发明人林芳,周伟,马晓峰. "A Process for Preparing High-Purity Methyl 3-amino-5-ethylpyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 108488258 A, 授权公告日 2016-09-27.
参考文献 Literature
Fischer P, Wagner E. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Rapid Commun. Mass Spectrom., 2010, 294, (1), 8599-8602.
Zhang Y, Li Q, Chen T. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Food Chem., 2016, 147, 9648-9677.
Fischer P, Wagner E. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 3-amino-5-ethylpyrazine-2-carboxylate Using HRMS and NMR". Environ. Sci. Technol., 2010, 1549, (7), 7792-7807.