Methyl 3-(4-(4-carbamoyl-3-fluorophenyl)piperazin-1-yl)propanoate

2-(1-{1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]cyclopropyl}-N-methylformamido)acetic acid

5-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanamido]methyl}pyridine-2-carboxylic acid

(2R,4R)-1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3-methylbutanoyl}-4-hydroxypyrrolidine-2-carboxylic acid

3-(2-Ethyl-1-hydroxybutan-2-yl)-8-azabicyclo[3.2.1]octan-3-ol

1-[3-(Hydroxymethyl)piperidin-3-yl]-4,4-dimethylcyclohexan-1-ol

4-ethyl-1-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]acetyl}piperidine-4-carboxylic acid

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

2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanamido]-2-methylpropanoic acid

3-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-5-methylhexanamido}-2,2-dimethylpropanoic acid

(2S)-2-{2-ethyl-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]butanamido}-4-(methylsulfanyl)butanoic acid