Synthesis 2013; 45(18): 2612-2618
DOI: 10.1055/s-0033-1339311
paper
© Georg Thieme Verlag Stuttgart · New York

Synthesis and Biological Evaluation of Methylenecyclopropane Analogues of Nucleosides

Germain Obame
a   Aix-Marseille Université, CNRS ICR – UMR 7273, 13397 Marseille Cedex 20, France
,
Paul Brémond
a   Aix-Marseille Université, CNRS ICR – UMR 7273, 13397 Marseille Cedex 20, France
,
Christophe Pannecouque
b   Rega Institute for Medical Research, Katholieke Universiteit Leuven, 10 Minderbroedersstraat, 3000 Leuven, Belgium   Fax: +33(4)91288545   eMail: g.audran@univ-amu.fr
,
Gérard Audran*
a   Aix-Marseille Université, CNRS ICR – UMR 7273, 13397 Marseille Cedex 20, France
› Institutsangaben
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Publikationsverlauf

Received: 13. Mai 2013

Accepted after revision: 04. Juni 2013

Publikationsdatum:
12. Juli 2013 (online)


Abstract

Starting from a chiral methylenecyclopropane building block, readily obtained by enzymatic desymmetrization of a meso-diol, two types of methylenecyclopropane analogues of nucleosides were synthesized. The first type of nucleosides was obtained from the direct coupling of the chiral building block with 6-chloropurine under Mitsunobu reaction conditions followed by the functionalization of the purine base. The second type of nucleosides featured a Curtius rearrangement as the key step and the uracil heterocycle was then constructed by a linear methodology. These derivatives were evaluated as potential agents against important viral pathogens. None of the new compounds had significant antiviral activity at a concentration of 100 μg/mL, which was the highest concentration tested.

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