2-{1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4,4-trifluorobutanoyl]azetidin-3-yl}propanoic acid

rac-(3R,5R)-5-[({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}formamido)methyl]oxolane-3-carboxylic acid

3-({3-[benzyl(methyl)amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido}methyl)cyclohexane-1-carboxylic acid

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

2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-(2-hydroxyethyl)-5-methylhex-4-enamido]acetic acid

2-cyclopropyl-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enamido]propanoic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enoyl]piperidine-3-carboxylic acid

3-[N-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enamido]propanoic acid

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enoyl]azetidin-3-yl}propanoic acid

3-cyclopropyl-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhex-4-enamido]propanoic acid

3-(2-Bromo-5-cyanophenyl)butanoic acid