Synthesis and antiviral evaluation of 2′,3′-dideoxy-2′,3′-difluoro-D-arabinofuranosyl 2,6-disubstituted purine nucleosides
作者:Raymond F. Schinazi、Grigorii G. Sivets、Mervi A. Detorio、Tami R. McBrayer、Tony Whitaker、Steven J. Coats、Franck Amblard
DOI:10.1515/hc-2015-0174
日期:2015.10.1
Abstract The synthesis of new 2,6-disubstituted purine 2′,3′-dideoxy-2′,3′-difluoro-D-arabino nucleosides is reported. Their ability to block HIV and HCV replication along with their cytotoxicity toward Huh-7 cells, human lymphocyte, CEM and Vero cells was also assessed. Among them, β-2,6-diaminopurine nucleoside 25 and guanosine derivative 27 demonstrate potent anti-HIV-1 activity (EC50 = 0.56 and
摘要 报道了新的 2,6-二取代嘌呤 2',3'-dideoxy-2',3'-difluoro-D-arabino 核苷的合成。还评估了它们阻断 HIV 和 HCV 复制的能力以及它们对 Huh-7 细胞、人淋巴细胞、CEM 和 Vero 细胞的细胞毒性。其中,β-2,6-二氨基嘌呤核苷 25 和鸟苷衍生物 27 表现出有效的抗 HIV-1 活性(EC50 = 0.56 和 0.65 μm;EC90 = 4.2 和 3.1 μm),同时在原代人类淋巴细胞中仅显示中等细胞毒性。