Compound 9

methyl 5-acetamido-9-O-benzyl-5-N,4-O-carbonyl-3,5-dideoxy-D-glycero-β-D-galacto-non-2-ulopyranosylonate-(2→3)-5-azidopentyl [2-O-benzyl-4,6-O-(2-naphthylmethylene)-β-D-galactopyranosyl-(1→4)]-2-azido-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranoside

From: Synthetic O-acetylated sialosides facilitate functional receptor identification for human respiratory viruses