Abstract

Abstract Starting from 2-chlorobenzimidazole and 1-O-acetyl-2,3,5-tri-O-benzoylribofuranose a β-D-ribonucleoside of 2-chlorobenzimidazole was obtained using Vorbrüggen's procedure. This compound was derivatized to a 2,2′-S-cyclonucleoside via 2′-O-tosylation and thiourea treatment. The cyclonucleoside was converted to 1-(2-deoxy-β-D-ribo-furanosyl) benzimidazole by Raney nickel desulfurization.

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