tert-butyl (1R,2S,3R,4S,5R,6S)-2,3,5-trihydroxy-6-[(4-methylphenyl)sulfonyl]-7-azabicyclo[2.2.1]heptane-7-carboxylate

(+)-(1S,2S,3R,4R,5R)-5-exo-amino-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-7-azabicyclo[2.2.1]heptane

(+)-(1S,2S,3R,4R,5S)-5-endo-amino-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-7-azabicyclo[2.2.1]heptane

(+)-(1S,2S,3R,4R,5S)-5-endo-benzylamino-7-tert-butoxycarbonyl-2,3-exo-isopropylidenedioxy-7-azabicyclo[2.2.1]heptane