A Convenient Approach to the Synthesis of Azido-Acyclic Nucleosides

Abstract
The azidation of unprotected acyclic nucleosides (4) was carried out in a one-pot reaction by means of the reagent triphenylphosphine-carbon tetraiodide-sodium azide to give the corresponding mono-azido-acyclic nucleosides (6) in good yields without by-products such as the di-azido-acyclic nucleosides.