4-methoxyphenyl (methyl 2,3,4-tri-O-acetyl-β-D-glucopyranosyluronate)-(1->3)-4,6-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranoside

(methyl 2,3,4-tri-O-acetyl-β-D-glucopyranosyluronate)-(1->3)-4,6-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl trichloroacetimidate