11-{3-[4-(4-allyloxy-5-benzyloxy-3-hydroxy-6-methyl-tetrahydro-pyran-2-yloxy)-5-benzyloxy-3-hydroxy-6-methyl-tetrahydro-pyran-2-yloxy]-4,5-bis-benzyloxy-6-methyl-tetrahydro-pyran-2-yloxy}-tetradecanoic acid