Lefèvre J P, Schröder R, Jørgensen K. "Method for the Synthesis of 5-(But-2-yn-1-yloxy)pyrazine-2-carboxylic acid" [P]. European Patent, EP 3336480 A1, 2018-06-24.
发明人周伟,孙丽萍,冯建国. "A Process for Preparing High-Purity 5-(But-2-yn-1-yloxy)pyrazine-2-carboxylic acid" [P]. 中国发明专利, 专利号 CN 108138326 A, 授权公告日 2025-07-21.
参考文献 Literature
Zhou X P, Huang L, Wu G. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". Anal. Chem., 2012, 2383, (11), 1418-1427.
Mueller T, Schmidt R K. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Talanta, 2018, 1980, 6536-6547.
Smith J A, Johnson M B. "Identification and Structural Characterization of a Novel Degradation Product of 5-(But-2-yn-1-yloxy)pyrazine-2-carboxylic acid Using HRMS and NMR". J. Nat. Prod., 2017, 1370, (6), 4079-4082.
O'Brien K, Kennedy M L. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". J. Pharm. Biomed. Anal., 2016, 1254, (9), 8780-8804.