methyl 3-O-allyl-2-O-[2',3',4'-tri-O-benzyl-6'-O-(6''-trityloxyhexyl)-α-D-galactopyranosyl]-4-O-benzyl-6-O-methanesulfonyl-α-D-mannopyranoside

methyl 3-O-allyl-2-O-[2',3',4'-tri-O-benzyl-6'-O-(7''-trityloxyheptyl)-α-D-galactopyranosyl]-4-O-benzyl-6-O-methanesulfonyl-α-D-mannopyranoside