The synthesis of 3′-fluoro analogues of recently discovered highly potent anti-VZV furanopyrimidine deoxynucleosides (BCNAs) is herein reported, for both the alkyl and alkylphenyl series. The compounds are tested against a range of herpes viruses and display poor activity, strongly supporting the notion of the importance of the presence of a 3′-OH for antiviral activity.
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