SYNTHESIS AND IN VITRO ANTI-HCV ACTIVITY OF β-D- and L-2′-DEOXY-2′-FLUORORIBONUCLEOSIDES
作者:Junxing Shi、Jinfa Du、Tianwei Ma、Krzysztof Pankiewicz、Steven E. Patterson、Abdalla E. A. Hassan、Phillip M. Tharnish、Tamara R. McBrayer、Stefania Lostia、Lieven J. Stuyver、Kyoichi A. Watanabe、Chung K. Chu、Raymond F. Schinazi、Michael J. Otto
DOI:10.1081/ncn-200059224
日期:2005.4.1
5-fluoro compounds, namely β-D-2′-deoxy-2′,5-difluorocytidine (5), had anti-HCV activity in the subgenomic HCV replicon cell line, and inhibitory activity against ribosomal RNA. As β-D-N4-hydroxycytidine (NHC) had previously shown potent anti-HCV activity, the two functionalities of the N4-hydroxyl and the 2′-fluoro were combined into one molecule, yielding β-D-2′-deoxy-2′-fluoro-N4-hydroxycytidine (12)
基于 β-D-2'-deoxy-2'-fluorocytidine 作为一种有效的抗丙型肝炎病毒 (HCV) 药物的发现,一系列 β-D- 和 l-2'-deoxy-2'-fluororibonucleosides合成了在 5 和/或 4 位进行修饰的 HCV,并评估了它们对 HCV 和牛病毒性腹泻病毒 (BVDV) 的体外活性。2'-氟基团的引入是通过用氟化氢-吡啶或氟化钾对 2,2'-脱水核苷进行氟化,或用 DAST 对阿拉伯核苷进行氟化来实现的。在合成的 27 个类似物中,只有 5-氟化合物,即 β-D-2'-deoxy-2',5-difluorocytidine (5) 在亚基因组 HCV 复制子细胞系中具有抗 HCV 活性,并且对核糖体 RNA。由于 β-D-N4-羟基胞苷 (NHC) 先前已显示出有效的抗 HCV 活性,N4-羟基和 2'-氟的两个官能团结合成一个分子,产生 β