(1S,2S,3S,4S,5R)-4-benzylamino-5-(hydroxymethyl)-1,2-isopropylidenecyclopentane-1,2,3-triol

(1R,2S,3S,4S,5R)-1-formyloxy-2-benzyloxy-3,4-O-isopropylidene-5-iodomethyl-1,2,3,4-cyclopentane-tetrol

(1R,2S,3S,4S,5S)-2-O-benzyl-3,4-O-isopropylidene-5-acetoxymethyl-1,2,3,4-cyclopentane-tetrol

(1R,2R,3R,4S,5R)-1-O-mesyl-3,4-O-isopropylidene-5-acetoxymethyl-cyclopentane-1,2,3,4-tetrol

(1S,2S,3S,4S,5S)-4-N-benzyl-5-acetoxymethyl-7,8-isopropylidenedioxy-2-oxa-4-azabicyclo[3.3.0]oct-3-one