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Abstract
We describe the synthesis of two series of acyclonucleosides: carbaacyclonucleosides and 1′-oxaacyclonucleosides which possess the same aglycone as clitocine 3 which is a natural nucleoside exhibiting interesting biological properties. These compounds have been obtained by condensation of 4-aminobutanol or 3-silyloxypropoxyamine with 4,6-dichloro-5-nitropyrimidine. Structural modifications have been made on the heterocyclic base and the side chain to enhance their potential activity.