Allyl 3,4,6-tri-O-acetyl-2-de--oxy-2-phthalimido-β-D-gluco-pyran-oside

摘要

The protected glycoside of 2-amino-2-de-oxy-glucose (glucosa-mine), namely allyl 3,4,6-tri-O-acetyl-2-de-oxy-2-phthalimido-β-D-gluco-pyran-oside, C23H25NO10, was synthesized from the glycosyl bromide. Crystallographic analysis confirmed the?β-anomeric configuration and showed an approximately orthogonal orientation of the phthalimido group with respect to the pyran-ose ring. The absolute configuration of the mol-ecule was known from the synthetic route and assigned accordingly.