(2S,3S,4R,5R,6S)-3,4,5-Tris-benzyloxy-2-[(1S,2S,3R,4S,6R)-4,6-diazido-3-((2R,3R,5S,6R)-3-azido-6-azidomethyl-5-benzyloxy-tetrahydro-pyran-2-yloxy)-2-benzyloxy-cyclohexyloxy]-6-methyl-tetrahydro-pyran