methyl α-L-rhamnopyranosyl-(1->3)-β-L-rhamnopyranosyl-(1->4)-α-D-glucopyranoside

methyl 3,4-di-O-benzyl-α-L-rhamnopyranosyl-(1->3)-4-O-benzyl-2-O-(naphthylmethyl)-β-L-rhamnopyranosyl-(1->4)-2,3,6-tri-O-benzyl-α-D-glucopyranoside