(1R,2S,4S,5R)-1-<(9-Phenyl-9-fluorenyl)amino>-2-<(tert-butyldimethylsilyl)oxy>-4-(methoxycarbonyl)-5-hydroxycyclopentane

(S)-Hydroxy-{(4R,5R)-5-[(S)-methoxycarbonyl-(9-phenyl-9H-fluoren-9-ylamino)-methyl]-2,2-dimethyl-[1,3]dioxolan-4-yl}-acetic acid

methyl 2-deoxy-3,4-O-isopropylidene-2-[(9-phenyl-9-fluorenyl)-amino]-D-mannonate

Dimethyl (2S,3R,4R,5S)-2-<(9-phenyl-9-fluorenyl)amino>-3,4,5-trihydroxy-3,4-O-isopropylideneadipate

(S)-[(4R,5S)-5-((S)-Methoxycarbonyl-trifluoromethanesulfonyloxy-methyl)-2,2-dimethyl-[1,3]dioxolan-4-yl]-(9-phenyl-9H-fluoren-9-ylamino)-acetic acid methyl ester