3-bromo-N-[4-[[2-(2,6-dioxo-3-piperidyl)-1,3-dioxo-isoindolin-4-yl]amino]butyl]propanamide

2-({[1-benzyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyrrolidin-3-yl]formamido}oxy)-2-cyclopropylacetic acid

(2R)-3-(4-bromophenyl)-2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]propanoic acid

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

1-benzyl-4-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]piperidine-4-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[(4-hydroxy-1-methylpiperidin-4-yl)methyl]carbamoyl}propanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[4-(1H-1,2,3,4-tetrazol-5-yl)butyl]carbamoyl}propanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-[3-(hydroxymethyl)-3-methoxypyrrolidin-1-yl]-5-oxopentanoic acid

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

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

3-[(2R)-3-(4-bromophenyl)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]propanoic acid