(2S,3S,4R)-4-{(4S,5S,6S)-6-[(R)-2-(tert-Butyl-diphenyl-silanyloxy)-1-methyl-ethyl]-2,2,5-trimethyl-[1,3]dioxan-4-yl}-2-methyl-pentane-1,3-diol

2,2-Dimethyl-propionic acid (2R,3R,4R,5R,6R)-7-(tert-butyl-diphenyl-silanyloxy)-3,5-dihydroxy-2,4,6-trimethyl-heptyl ester