4-(Cyanomethoxy)-3,5-dimethylbenzoic acid

2-(3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxybutanamido]methyl}cyclobutyl)acetic acid

2-(3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]methyl}cyclobutyl)acetic acid

2-[4-(dimethylamino)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-(prop-2-en-1-yl)butanamido]acetic acid

2-[3-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2,5-oxadiazol-3-yl]formamido}methyl)cyclobutyl]acetic acid

2-[3-({[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,2-oxazol-3-yl]formamido}methyl)cyclobutyl]acetic acid

4-[2-(cyclopentylmethyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]butanoic acid

3-[2-(cyclopentylmethyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]butanoic acid

2-[N-benzyl-2-(cyclopentylmethyl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]acetic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{[2-(1-methylazetidin-3-yl)ethyl]carbamoyl}butanoic acid

3-{1-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]-N-propylformamido}propanoic acid