(R)-2-{(2R,5S,2'S,5'S)-5'-[(R)-1-Hydroxy-1-methyl-2-(2-trimethylsilanyl-ethoxymethoxy)-ethyl]-2-methyl-octahydro-[2,2']bifuranyl-5-yl}-4-((R)-2,2,5,5-tetramethyl-[1,3]dioxolan-4-yl)-butan-2-ol