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Title: Antiviral activity of cyclosaligenyl prodrugs of acyclovir, carbovir and abacavir
Authors: Balzarini, Jan ×
Haller-Meier, F
De Clercq, Erik
Meier, C #
Issue Date: Sep-2001
Series Title: Antiviral chemistry & chemotherapy vol:12 issue:5 pages:301-6
Abstract: The cyclosaligenyl (cycloSal) derivatives of the monophosphates of three acyclic or carbocyclic guanosine analogues, for example, acyclovir (ACV), carbovir (CBV) and abacavir (ABC), were investigated for their activity against retrovirus (HIV, Moloney sarcoma virus) and herpes simplex virus (HSV) activity in cell culture. The extent of the antiviral potency of the prodrugs depended on the nature of the nucleoside, the substituent on the cycloSal moiety and the virus investigated. Most notably, and unlike the parent compound ACV, cycloSal-ACV monophosphate (MP) prodrugs retained pronounced activity against ACV-resistant (thymidine kinase-deficient) HSV-1 and also gained anti-HIV activity. While the cycloSal-CBVMP prodrugs did not show enhanced activity compared with the parent compound CBV, the cycloSal-ABCMP prodrugs afforded markedly increased potency against both HSV and HIV. Our data indicate that the cycloSal prodrug approach can be useful to deliver directly the MP derivatives of nucleoside analogues into the intact, virus-infected cells, thus improving and extending the antiviral potency and spectrum of the drugs against retro- and herpesvirus strains.
ISSN: 0956-3202
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Virology and Chemotherapy (Rega Institute)
× corresponding author
# (joint) last author

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