Methyl (2S,3S,4S,5S,6S)-6-{[(1S,2S,3S,4R,5R)-3-( acetyloxy)-4-azido-6,8-dioxabicyclo[3.2.1]oct-2-yl]Methyl}-4
(2S,3S,4S,5R,6R)-METHYL 6-((1R,2S,3R,4R,5R)-3-ACETOXY-4-AZIDO-6,8-DIOXABICYCLO[3,2,1]OCTAN-2-YLOXY)-4,5-BIS(BENZYLOXY)-3-HYDROXYTETRAHYDRO-2H-PYRAN-2-CARBOXYLATE