Synthesis and antiviral activity of novel acyclic nucleosides in the 5-alkynyl- and 6-alkylfuro[2,3-d]pyrimidine series
作者:Franck Amblard、Vincent Aucagne、Pierre Guenot、Raymond F. Schinazi、Luigi A. Agrofoglio
DOI:10.1016/j.bmc.2004.11.057
日期:2005.2
The synthesis of novel acyclic nucleosides in the 5-alkynyl and 6-alkylfuro[2,3-d]pyrimidine series is described. These compounds were evaluated against HIV and HSV in order to determine their spectrum of antiviral activity. Their cytotoxicities against PBM, CEM and VERO cells were also determined. Compounds 21d and 24b displayed moderate EC50s of 2.7 and 4.9 microM, respectively, against HIV-1 and
Synthesis and Biological Evaluation of Acyclic 3-[(2-Hydroxyethoxy)methyl] Analogues of Antiviral Furo- and Pyrrolo[2,3-<i>d</i>]pyrimidine Nucleosides
作者:Zlatko Janeba、Jan Balzarini、Graciela Andrei、Robert Snoeck、Erik De Clercq、Morris J. Robins
DOI:10.1021/jm050291s
日期:2005.7.1
The remarkably potent and specific activity against varicella-zoster virus (VZV) shown by 2'deoxymicleosides of furo[2,3-d]pyrimidin-2(3H)-one and related ring systems is dependent on key structural features including the length and nature of the side-chain at C6 and the structure and stereochemistry of the sugar moiety at N3. Removal of the X-hydroxyl group from potent anti-VZV 2'-deoxynucleosides results in loss of the VZV activity, but such 2',3'-dideoxynucleoside analogues have shown anti-HCMV activity. We now report acyclic analogues with comparable side-chains at C6, but with the sugar moiety at N3 replaced with the (2-hydroxyethoxy)methyl group (present in the antiherpes drug acyclovir). Examples of both furo[2,3, d]-and pyrrolo[2,3-d]pyrimidin-2(3H)-one acyclic analogues were prepared and evaluated in a number of virus infected cells and in tumor cell cultures. Certain of the long-chain analogues showed activity against VZV and HCMV. No significant activity against other DNA and RNA virus replication or against tumor cell proliferation was observed.