发明人王建平,黄志刚,杨光. "一种索磷布韦杂质4的合成方法" [P]. 中国发明专利, 专利号 CN 113569764 A, 授权公告日 2021-06-15.
发明人陈志强,刘建华,何建平. "Method for the Synthesis of Sofosbuvir Impurity 4" [P]. 中国发明专利, 专利号 CN 115634246 B, 授权公告日 2025-12-26.
Park J H, Chen K W, Stevens L M. "A Process for Preparing High-Purity Sofosbuvir Impurity 4" [P]. US Patent, US 9389576 B2, 2018-10-09.
参考文献 Literature
Yang F, Sun W, Liu J. "Development and Validation of an LC-MS/MS Method for the Determination of 索磷布韦杂质4 in Pharmaceutical Formulations". Anal. Methods, 2014, 2237, 7239-7268.
Smith J A, Johnson M B. "A Stability-Indicating HPLC Method for the Separation and Quantification of 索磷布韦杂质4 as an Impurity". Food Chem., 2017, 372, (1), 5863-5882.
Martinez C, Lopez D R. "Identification and Structural Characterization of a Novel Degradation Product of Sofosbuvir Impurity 4 Using HRMS and NMR". J. Agric. Food Chem., 2024, 1764, 7510-7533.