Stereocontrolled Synthesis of β-d-2′-Deoxyribonucleosides by Intramolecular Glycosylation

Abstract

Abstract Intramolecular glycosylation of phenyl 2-deoxy-5-O-(2-pyridyl)- and 2-deoxy-5-O-(4-methoxy-2-pynmidyl)-1-thio-d-ribofuranoside by activation with dimethyl(methylthio)sulfonium tetrafluoroborate followed by hydrolysis gave the corresponding β-2′-deoxyribonucleoside derivatives in good yields.