(1S,2R,3S)-N-(3-hydroxypropyl)-N-(o-nitrobenzenesulfonyl)-2,3-isopropylidinedioxycyclopent-4-enylamine

N-(2-Bromo-3-oxo-propyl)-N-((3aR,4S,6aS)-2,2-dimethyl-4,6a-dihydro-3aH-cyclopenta[1,3]dioxol-4-yl)-2-nitro-benzenesulfonamide

(1S,2R,3S)-N-(3-tert-butyldimethylsilyloxypropyl)-N-(o-nitrobenzenesulfonyl)-2,3-isopropylidinedioxycyclopent-4-enylamine

2-amino-5-[(1S,2R,3S)-N-(o-nitrobenzenesulfonyl)-2,3-isopropylidinedioxycyclopent-4-enylaminomethyl]-pyrrolo[2,3-d]pyrimidin-4(3H)-one

(3aR,4S,6aS)-2,2-dimethyl-2H,3aH,4H,6aH-cyclopenta[d][1,3]-dioxol-4-ol