(3,3-Dimethyloxan-2-yl)methanesulfonyl fluoride

(2S,3R)-3-(benzyloxy)-2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}butanoic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methoxybutanoyl]-2-methylpyrrolidine-3-carboxylic acid

(2S)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]formamido}-3-hydroxypropanoic acid

rac-(1R,2S)-2-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-fluorophenyl]formamido}methyl)cyclopropane-1-carboxylic acid

rac-(1R,2S)-2-({[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[2.2.1]heptan-2-yl]formamido}methyl)cyclopropane-1-carboxylic acid

1-{2-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]ethyl}-1H-1,2,3-triazole-4-carboxylic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[(1-hydroxy-3-methoxy-2-methylpropan-2-yl)(methyl)carbamoyl]butanoic acid

3-{[2-(tert-butoxy)ethyl](methyl)carbamoyl}-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[(2-hydroxy-2-methylpropyl)(propan-2-yl)carbamoyl]butanoic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]butanoic acid