2H-Pyran-2-acetic acid, 6-(15-(5-(4-(6-ethyltetrahydro-5-hydroxy-5-methyl-2H-pyran-2-yl)-1,4-dihydroxy-2-methylpentyl)tetrahydro-5-methyl-2-furanyl)-2,4,8,10,14,15-hexahydroxy-3,7,11,13-tetramethylpentadecyl)tetrahydro-alpha,3,5-trimethyl-