Dispiro[2.0.3^{4}.2^{3}]nonan-9-one

2-{[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]methyl}-3,3,3-trifluoropropanoic acid

2-({[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]formamido}methyl)-3,3,3-trifluoropropanoic acid

2-(3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanamido}cyclobutyl)acetic acid

3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanamido}oxolane-2-carboxylic acid

4-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanamido}-2-methoxybutanoic acid

1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoro-N-methylpropanamido}cyclopropane-1-carboxylic acid

1-amino-3-(3-nitro-1H-pyrazol-4-yl)propan-2-ol

2-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanoyl}-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

2-{N-benzyl-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3,3,3-trifluoropropanamido}acetic acid

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