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

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

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

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

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