<scp>l</scp>-2‘,3‘-Didehydro-2‘,3‘-dideoxy-3‘-fluoronucleosides: Synthesis, Anti-HIV Activity, Chemical and Enzymatic Stability, and Mechanism of Resistance
作者:Youhoon Chong、Giuseppe Gumina、Judy S. Mathew、Raymond F. Schinazi、Chung K. Chu
DOI:10.1021/jm0300274
日期:2003.7.1
the L-3',3'-difluoro-2',3'-dideoxy nucleoside series, cytidine 16 and 5-fluorocytidine 18 analogues showed modest antiviral activity (EC(50) 11.5 and 8.8 microM, respectively) when evaluated against HIV-1 in human peripheral blood mononuclear (PBM) cells. In the 2',3'-unsaturated series, L-3'-fluoro-2',3'-didehydro-2',3'-dideoxycytidine 24 and 5-fluorocytidine 26 showed highly potent antiviral activity
由于赋予了具有2'-氟取代基的包含2',3'-不饱和糖部分的抗病毒核苷,提高了糖基键的稳定性,因此有必要研究氟原子在3'-位的影响。通过消除氟化氢,从其前体L-3′,3′-二氟-2′,3′-二脱氧核苷合成了各种嘧啶和嘌呤的L-3′-氟-2′,3′-不饱和核苷。在L-3',3'-difluoro-2',3'-dideoxy核苷系列中,当针对HIV进行评估时,胞苷16和5-氟胞苷18类似物显示适度的抗病毒活性(分别为EC(50)11.5和8.8 microM)。 -1在人外周血单核(PBM)细胞中。在2',3'-不饱和序列中,L-3'-氟-2',3'-二氢-2',3' -二脱氧胞苷24和5-氟胞苷26显示了很强的抗病毒活性(EC(50)0.089和0.018 microM,分别)没有明显的细胞毒性。鸟苷类似物48仅显示出少量的抗HIV活性,并具有一定的细胞毒性(分别在PBM,CEM和Vero细胞中的EC(50)38