(4R,5R)-5-{(1S,3R,4R,5S,6R)-3,5-dihydroxy-1-methoxy-7-[(4-methoxybenzyl)oxy]-4,6-dimethylheptyl}-4-[(2-methoxyethoxy)methoxy]-3,3-dimethyldihydrofuran-2(3H)-one

(4R,5R)-5-{(1S)-2-[(4R,5R,6S)-2-ethyl-6-{(1R)-2-[(4-methoxybenzyl)oxy-1-methylethyl]-5-methyl-1,3,2-dioxaborinan-4-yl}-1-methoxyethyl]}-4-[(2-methoxyethoxy)methoxy]-3,3-dimethyldihydrofuran-2(3H)-one