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

methyl 4,6-O-benzylidene-2,3-anhydro-β-mannopyranoside