发明人冯建国,周伟,郭海燕. "一种的合成方法" [P]. 中国发明专利, 专利号 CN 117027659 A, 授权公告日 2019-10-14.
Roberts E F, Patel M V, Williams B T. "Method for the Synthesis of Favipiravir Impurity 21" [P]. US Patent, US 10892619 B2, 2021-06-20.
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". Food Chem., 2015, 1060, (5), 7435-7461.
Brown R C, Davis S M. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Anal. Methods, 2025, 308, 3586-3590.
Zhang Y, Li Q, Chen T. "Identification and Structural Characterization of a Novel Degradation Product of Favipiravir Impurity 21 Using HRMS and NMR". J. Agric. Food Chem., 2012, 1144, 9593-9602.
Smith J A, Johnson M B. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Environ. Sci. Technol., 2024, 933, (5), 5515-5525.