4-azido-4-deoxy-2,3-O-isopropylidene-α-D-mannose

methyl 4-azido-4-deoxy-6-O-tert-butyldiphenylsilyl-2,3-O-isopropylidene-α-D-mannopyranoside

Trifluoro-methanesulfonic acid (3aS,4S,6R,7S,7aR)-6-(tert-butyl-diphenyl-silanyloxymethyl)-4-methoxy-2,2-dimethyl-tetrahydro-[1,3]dioxolo[4,5-c]pyran-7-yl ester