tert-butyldimethylsilyl (6-O-acetyl-2-azido-3-O-benzyl-4-O-levulinoyl-2-deoxy-α-D-glucopyranosyl)-(1->4)-methyl 3-O-benzyl-β-L-idopyranosyluronate

methyl 2-O-pivaloyl-3-O-benzyl-4-O-levulinoyl-L-idopyranosiduronate trichloroacetimidate

methyl 4-O-acetyl-3-O-benzyl-β-L-idopyranuronate 1,2-(tert-butyl orthoacetate)

pent-4-enyl (6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-4-O-levulinoyl-β-D-glucopyranosyl)-(1->4)-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyl)-(1->4)-6-O-acetyl-2-azido-3-O-benzyl-2-deoxy-β-D-glucopyranoside

benzyl 6-O-acetyl-3-O-benzyl-2-<(benzyloxycarbonyl)amino>-2-deoxy-4-O-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-α-D-glucopyranoside