tert-butyl N-{2-[1-(2-aminoethyl)cyclobutyl]-4-chlorophenyl}carbamate

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

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

3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanamido]oxolane-3-carboxylic acid

2-{1-benzyl-4-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]piperidin-4-yl}acetic acid

3-{2-[1-benzyl-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)piperidin-4-yl]-N-methylacetamido}-2-methylpropanoic acid

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

2-{3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methoxypropanamido]phenyl}acetic acid

Tert-butyl 4-[4-(propan-2-yl)cyclohexyl]pyrrolidine-3-carboxylate

1-[(tert-butoxy)carbonyl]-4-(1-methyl-1H-pyrazol-5-yl)pyrrolidine-3-carboxylic acid

1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-4-(5-methylthiophen-2-yl)pyrrolidine-3-carboxylic acid