Stereocontrolled synthesis of 3′-isomeric β-nucleoside by intramolecular glycosylation
Abstract
Intramolecular glycosylation of a pyrimidine derivative, which was temporarily connected to a 2,3-unsaturated 1-thiopentofuranoside through an ethereal linkage, led to an unusual 3′-isomeric nucleoside in a stereoselective fashion.