O'Brien P Q, Roberts E F, Lee S K. "Method for the Synthesis of Methyl 5-chloro-3-methoxypyrazine-2-carboxylate" [P]. US Patent, US 9638553 B2, 2015-04-26.
发明人王建平,周伟,徐明华. "A Process for Preparing High-Purity Methyl 5-chloro-3-methoxypyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 115372498 A, 授权公告日 2016-08-10.
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". Anal. Chim. Acta, 2018, 515, 348-371.
Yang F, Sun W, Liu J. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Rapid Commun. Mass Spectrom., 2016, 1847, 6160-6174.
Yamamoto K, Tanaka H, Suzuki T. "Identification and Structural Characterization of a Novel Degradation Product of Methyl 5-chloro-3-methoxypyrazine-2-carboxylate Using HRMS and NMR". Food Chem., 2015, 1521, 7117-7128.