2-O-acetyl-3,6-anhydro-7-O-benzyl-4,5-O-isopropylidene-D-glycero-D-allo-heptonamide

2-O-acetyl-3,6-anhydro-4,5-O-isopropylidene-7-O-methanesulfonyl-D-glycero-D-allo-heptonamide