发明人何建平,刘建华,王建平. "Method for the Synthesis of Ethyl 5-chloropyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 117256082 B, 授权公告日 2020-04-04.
发明人李文辉,唐晓军,陈志强. "A Process for Preparing High-Purity Ethyl 5-chloropyrazine-2-carboxylate" [P]. 中国发明专利, 专利号 CN 114948699 B, 授权公告日 2025-10-12.
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". Talanta, 2014, 133, 5734-5757.
Zhou X P, Huang L, Wu G. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". J. Nat. Prod., 2012, 2095, 7969-7996.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Ethyl 5-chloropyrazine-2-carboxylate Using HRMS and NMR". J. Agric. Food Chem., 2015, 2313, 7207-7215.
Jensen P, Larsen A M, Olsen K. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chim. Acta, 2015, 1142, (11), 7211-7216.