(2S,3S,4S,5S,6S)-6-Bromomethyl-5-(tert-butyl-dimethyl-silanyloxy)-4-[2-(tert-butyl-dimethyl-silanyloxy)-ethoxy]-2-methoxy-tetrahydro-pyran-3-ol

(3R,4R,5R)-3-benzoyloxy-4-[2-(tert-butyldimethylsilyloxy)ethoxy]-5,6-epoxyhex-1-ene