(1R,2S,3R)-1-O-benzyl-2,3-O-isopropylidenecyclopent-4-ene-1,2,3,4-tetrol

(1S,2S,3R,4R,5S)-2-O-benzyl-5-((tert-butoxycarbonyl)amino)-1-O-(tert-butyldimethylsilyl)-3,4-O-isopropylidenecyclopentane-1,2,3,4-tetrol

7-[(R)-2-((E)-(S)-3-Hydroxy-oct-1-enyl)-5-oxo-cyclopent-3-en-(E)-ylidene]-heptanoic acid methyl ester

(1S,5S,8S)-4-(4'-Bromophenyl)-8-hydroxy-2-oxa-3-azabicyclo[3.3.0]oct-3-en-6-one

tert-butyl((1R,2S,5S)-5-{[tert-butyl(dimethyl)silyl]oxy}-2-methyl-3-oxocyclopentyl)methyl[(4-methylphenyl)sulfonyl]carbamate