5′-O-[Bis(4-methoxyphenyl)phenylmethyl]-2′,3′-bis-O-[2,8-dioxo-7-[1-oxo-13-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]-5,8,11-trioxa-2-azatridec-1-yl]-20-[[3,4,6-tri-O-acetyl-2-(acetylamino)-2-deoxy-β-D-galactopyranosyl]oxy]-12,15,18-trioxa-3,9-diazaeicos-1-yl]uridine