发明人刘建华,罗永刚,林芳. "Method for the Synthesis of Favipiravir Impurity 43" [P]. 中国发明专利, 专利号 CN 109754393 B, 授权公告日 2016-08-01.
参考文献 Literature
Wang L, Li J, Zhang H. "Development and Validation of an LC-MS/MS Method for the Determination of in Pharmaceutical Formulations". J. Chromatogr. A, 2010, 1823, (8), 4646-4653.
Kumar A, Sharma P, Patel R S. "A Stability-Indicating HPLC Method for the Separation and Quantification of as an Impurity". Phytochemistry, 2024, 403, (5), 1209-1238.
Kumar A, Sharma P, Patel R S. "Identification and Structural Characterization of a Novel Degradation Product of Favipiravir Impurity 43 Using HRMS and NMR". Molecules, 2025, 2356, (5), 8779-8795.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate Profile in Drug Substances According to ICH Guidelines". Anal. Chem., 2012, 1419, 3668-3674.