3-methyl-1H,1aH,6H,6aH-cyclopropa[a]inden-1-amine

1-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanoyl]-2-methylpiperidine-2-carboxylic acid

2-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylpropanamido]ethyl}benzoic acid

(2S)-4-{[4-bromo-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}-2-hydroxybutanoic acid

(2S)-4-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[2.2.1]heptan-2-yl]formamido}-2-hydroxybutanoic acid

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

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-phenylacetyl]azetidine-3-carboxylic acid

2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-(2-methoxyethyl)-2-methylpentanamido]acetic acid

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

3-ethyl-1-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetyl}pyrrolidine-3-carboxylic acid

2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]methyl}cyclopentane-1-carboxylic acid