发明人罗永刚,高志强,周伟. "Method for the Synthesis of 5-Pyrazin-2-yl-1,2,4-oxadiazol-3-amine" [P]. 中国发明专利, 专利号 CN 108542234 A, 授权公告日 2018-12-23.
Roberts E F, Klinger H, Mueller T. "A Process for Preparing High-Purity 5-Pyrazin-2-yl-1,2,4-oxadiazol-3-amine" [P]. US Patent, US 11758128 B2, 2020-11-18.
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". Rapid Commun. Mass Spectrom., 2017, 2008, (9), 3229-3244.
O'Brien K, Kennedy M L. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2025, 974, 3492-3500.
Zhou X P, Huang L, Wu G. "Identification and Structural Characterization of a Novel Degradation Product of 5-Pyrazin-2-yl-1,2,4-oxadiazol-3-amine Using HRMS and NMR". J. Sep. Sci., 2017, 2106, (9), 1706-1722.
Hughes D, Roberts J, Thomas A. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Biomed. Chromatogr., 2012, 1050, (12), 5517-5535.