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Title: 3'-fluoro-2',3'-dideoxy-5-chlorouridine - most selective anti-hiv-1 agent among a series of new 2'-fluorinated and 3'-fluorinated 2',3'-dideoxynucleoside analogs
Authors: Van Aerschot, Arthur
Herdewijn, Piet
Balzarini, Jan
Pauwels, R
DeClercq, E #
Issue Date: Aug-1989
Publisher: Amer chemical soc
Series Title: Journal of Medicinal Chemistry vol:32 issue:8 pages:1743-1749
Abstract: A series of 2'- and 3'-fluorinated 2',3'-dideoxynucleosides and 3'-azido-2',3'-dideoxynucleosides were synthesized and evaluated for their inhibitory activity against human immunodeficiency virus-1 (HIV-1) replication in MT-4 cells. Neither conversion of 3'-fluoro- or 3'-azido-2',3'-dideoxyadenosine to the corresponding inosine derivatives nor 8-bromination of 2',3'-dideoxyadenosine resulted in increased anti-HIV-1 activity. Nor did introduction of a 2'-fluorine in the erythro or threo configuration lead to improved anti-HIV-1 activity of the parent 2',3'-dideoxynucleosides. 1-(2-Fluoro-2,3-dideoxy-beta-D-threo-pentofuranosyl)cytosine and 1-(2-fluoro-2,3-dideoxy-beta-D-erythropentofuranosyl)thymine were only marginally active. However, 3'-fluoro-2',3'-dideoxyuridine (FddUrd) proved to be potent and a relatively nontoxic inhibitor of HIV-1. 5-Halogenated derivatives of FddUrd were prepared in attempts to further increase its anti-HIV potency and selectivity. Of these 5-halogenated derivatives, 3'-fluoro-2',3'-dideoxy-5-chlorouridine emerged as the most selective inhibitor of HIV-1 replication. Its selectivity index was comparable to that of azidothymidine when evaluated under the same conditions.
ISSN: 0022-2623
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Medicinal Chemistry (Rega Institute)
Laboratory of Virology and Chemotherapy (Rega Institute)
# (joint) last author

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