Methyl O-(6-O-acetyl-2-azido-3,4-di-O-benzyl-2-deoxy-α-D-glucopyranosyl)-(1→4)-O-(methyl 2,3-di-O-benzyl-β-D-glucopyranosyluronate)-(1→4)-O-(3,6-di-O-acetyl-2-azido-2-deoxy-α-D-glucopyranosyl)-(1→4)-O-(methyl 2-O-acetyl-3-O-benzyl-α-L-idopyranosyluronate)-(1→4)-6-O-acetyl-3-O-benzyl-2-benzyloxycarbonylamino-2-deoxy-α-D-glucopyranoside, Methyl O-6-O-acetyl-2-azido-2-deoxy-3,4-bis-O-(phenylmethyl)-α-D-glucopyranosyl-(1→4)-O-6-methyl 2,3-bis-O-(phenylmethyl)-β-D-glucopyranuronosyl-(1→4)-O-3,6-di-O-acetyl-2-azido-2-deoxy-α-D-glucopyranosyl-(1→4)-O-2-O-acetyl-6-methyl-3-O-(phenylmethyl)-α-L-idopyranuronosyl-(1→4)-2-deoxy-2-[[(phenylmethoxy)carbonyl]amino]-3-O-(phenylmethyl)-α-D-glucopyranoside 6-acetate