Octahydro-2H-pyrrolo[3,2-B]pyridin-2-one

4-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}-3-hydroxy-3-methylbutanoic acid

2-(2-{[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]formamido}ethyl)-1,3-thiazole-4-carboxylic acid

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

1-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1H-1,2,4-triazole-3-carbonyl]-2-methylpyrrolidine-3-carboxylic acid

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

3-(N-ethyl-1-{2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]-1,3-thiazol-4-yl}formamido)propanoic acid

3-{[(5-ethyl-1,3-thiazol-2-yl)methyl]carbamoyl}-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

3-({2-[cyclopropyl(methyl)amino]propyl}carbamoyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

3-{[2-(5-chlorothiophen-2-yl)ethyl]carbamoyl}-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[4-(1-hydroxyethyl)piperidin-1-yl]-4-oxobutanoic acid