Schröder R, Stevens L M, Park J H. "一种熊去氧胆酸EP杂质F的合成方法" [P]. US Patent, US 11890209 B2, 2024-06-05.
发明人周伟,杨光,陈志强. "Method for the Synthesis of Ursodeoxycholic Acid EP Impurity F" [P]. 中国发明专利, 专利号 CN 117422424 B, 授权公告日 2019-03-05.
发明人郭海燕,唐晓军,周伟. "A Process for Preparing High-Purity Ursodeoxycholic Acid EP Impurity F" [P]. 中国发明专利, 专利号 CN 113472302 B, 授权公告日 2021-12-19.
参考文献 Literature
Kumar A, Sharma P, Patel R S. "Development and Validation of an LC-MS/MS Method for the Determination of 熊去氧胆酸EP杂质F in Pharmaceutical Formulations". J. Nat. Prod., 2022, 1466, (3), 680-693.
Kim S H, Park J Y. "A Stability-Indicating HPLC Method for the Separation and Quantification of 熊去氧胆酸EP杂质F as an Impurity". Environ. Sci. Technol., 2019, 2119, (11), 1915-1937.
Xu M, Hu Y, Zhou D. "Identification and Structural Characterization of a Novel Degradation Product of Ursodeoxycholic Acid EP Impurity F Using HRMS and NMR". J. Pharm. Biomed. Anal., 2025, 1822, (1), 8920-8932.
Brown R C, Davis S M. "Forced Degradation Studies to Evaluate 熊去氧胆酸EP杂质F Profile in Drug Substances According to ICH Guidelines". Anal. Methods, 2018, 977, 2579-2584.