2,2-Dimethyl-propionic acid 2-[(2S,3S,4R,6S)-6-benzyloxymethyl-4-(tert-butyl-dimethyl-silanyloxy)-3-methyl-3-vinyl-tetrahydro-pyran-2-yl]-ethyl ester

(2S,4R)-1-Benzyloxy-4-(4-methoxy-benzyloxy)-5-methyl-hex-5-en-2-ol