2,2-Dimethyl-propionic acid (2R,3R,4S,6R)-2-(2-benzyloxy-ethyl)-3-benzyloxymethyl-6-furan-2-yl-3-methyl-tetrahydro-pyran-4-yl ester

(2R,3S,4S,6R)-2-(2-Benzyloxy-ethyl)-3-benzyloxymethyl-6-(tert-butyl-diphenyl-silanyloxymethyl)-3-methyl-tetrahydro-pyran-4-ol