(2R,3S,6S)-3-azido-6-(benzyloxy)-3,6-dihydro-2-(3-tert-butyldimethylsilyloxypropyl)-2H-pyran

(2R,3S,6S)-6-(benzyloxy)-3,6-dihydro-2-(3-tert-butyldimethylsilyloxypropyl)-2H-pyran-3-yl methyl carbonate

(2S,3S,4S,5S,6R)-5-azido-2-(benzyloxy)-tetrahydro-6-(3-tert-butyldimethylsilyloxypropyl)-2H-pyran-3,4-diol