Synthesis and anti-HIV activities of bis-(cycloSaligenyl) pronucleotides derivatives of 3′-fluoro-3′-deoxythymidine and 3′-azido-3′-deoxythymidine
作者:Yousef Ahmadibeni、Rakesh Tiwari、Chelsie Swepson、Jui Pandhare、Chandravanu Dash、Gustavo F. Doncel、Keykavous Parang
DOI:10.1016/j.tetlet.2010.12.038
日期:2011.2
Anti-HIV nucleoside monophosphates have limited cellular uptake due to the presence of negatively-charged phosphate group. Bis-(cycloSaligenyl) derivatives containing two anti-HIV nucleosides, 3′-fluoro-3′-deoxythymidine (FLT) and 3′-azido-3′-deoxythymidine (AZT) were synthesized to increase intracellular delivery of nucleoside monophosphates. 2,5-Bis(hydroxymethylene)benzene-1,4-diol was selected
由于存在带负电荷的磷酸基,抗HIV核苷单磷酸具有有限的细胞摄取。合成了含有两个抗HIV核苷3'-氟-3'-脱氧胸苷(FLT)和3'-叠氮基3'-脱氧胸苷(AZT)的双-(环Saligenyl)衍生物,以增加核苷单磷酸的胞内传递。选择2,5-双(羟基亚甲基)苯-1,4-二醇作为单环双齿骨架,并通过三种不同的方法由双(羟基亚甲基)环己基-1,4-二烯-1,4-二醇或二乙基2合成,5-二羟基对苯二甲酸酯。在2,6-二甲基吡啶存在下,四醇与二异丙基亚磷酰二氯反应,然后与核苷(即FLT和AZT)偶联反应并氧化,得到对称和不对称的双-(环Saligenyl)二磷酸三酯产物AZT–AZT,FLT–FLT和FLT–AZT缀合物,总收率63-74%,抗HIV活性适中(IC 50 = 2.8-69.6μM)。