(2-(1-Benzylpyrrolidin-2-yl)cyclopropyl)methanol

rac-3-{2-[(1R,2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]acetamido}propanoic acid

4-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]acetamido}-2-hydroxybutanoic acid

rac-2-[(1R,2S)-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]cyclopentyl]acetic acid

1-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-4,4-difluoropyrrolidine-3-carboxylic acid

2-{4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]oxan-4-yl}acetic acid

(3R)-3-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}formamido)pentanoic acid

2-{1-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-3-oxopiperazin-2-yl}acetic acid

3-{4-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]piperazin-1-yl}propanoic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-2-(1-methyl-1H-pyrazol-5-yl)acetic acid

2-cyclobutyl-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]propanoic acid