Johnson M A, Brown S R, Stevens L M. "一种法维拉韦杂质19的合成方法" [P]. US Patent, US 9206693 B2, 2020-08-02.
发明人高志强,郑宇鹏,陈志强. "Method for the Synthesis of Favipiravir Impurity 19" [P]. 中国发明专利, 专利号 CN 110325821 A, 授权公告日 2020-01-10.
参考文献 Literature
Smith J A, Johnson M B. "Development and Validation of an LC-MS/MS Method for the Determination of 法维拉韦杂质19 in Pharmaceutical Formulations". Chromatographia, 2019, 918, 9142-9170.
Lee J H, Choi Y S. "A Stability-Indicating HPLC Method for the Separation and Quantification of 法维拉韦杂质19 as an Impurity". J. Chromatogr. A, 2025, 276, (9), 9798-9803.
Hughes D, Roberts J, Thomas A. "Identification and Structural Characterization of a Novel Degradation Product of Favipiravir Impurity 19 Using HRMS and NMR". Talanta, 2011, 1155, (2), 1142-1159.
Kumar A, Sharma P, Patel R S. "Forced Degradation Studies to Evaluate 法维拉韦杂质19 Profile in Drug Substances According to ICH Guidelines". J. Sep. Sci., 2023, 98, 4555-4578.