Abstract

The first synthetic route to 5′-deoxy-6′,6′-difluoro-carbocyclic C-nucleoside [9-deazaadenosine, (pyrrolo[3,2-d]pyrimidine)] phosphonic acids from commercially available epichlorohydrin 5 was described. The key C-C bond formation from cyclopentanone to base precursor was performed using the Knoevenagel-type condensation. Synthesized C-nucleoside phosphonic acids were tested for anti-HIV and anti-leukemic activities. They showed moderate cytotoxicity-derived anti-HIV and anti-leukemic activities.

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