As-triazine derivatives with potential therapeutic action. XXVI. Syntheses of 5-substituted-6-azauracil acyclonucleosides

5-Substituted 6-azauracils were alkylated with (2-acetoxyethoxy)methly bromide to give protected acyclic nucleosides which were protected to afford acyclonucleosides of 5-substituted 6-azauracils. Their structures have been established by the UV and 1H-NMR spectra and by elemental analysis.