Ethyl 3-((3-(thiophen-3-yl)-1,2,4-oxadiazol-5-yl)methyl)piperidine-1-carboxylate

3-({3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}methyl)oxolane-2-carboxylic acid

4-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2,4-trimethylpentanamido]-2-hydroxybutanoic acid

rac-(1R,3R,5R)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]bicyclo[3.1.0]hexane-1-carboxylic acid

6-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-(methylsulfanyl)butanamido]hexanoic acid

2-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]-5-methylhex-4-enoic acid

2-{3-[benzyl(methyl)amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl}-2-azabicyclo[2.1.1]hexane-5-carboxylic acid

4-{3-[benzyl(methyl)amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido}-3-cyclopropylbutanoic acid

1-{3-[benzyl(methyl)amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl}-2-ethylpyrrolidine-3-carboxylic acid

2-[N,2-diethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]acetic acid

2-{1-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentanecarbonyl]pyrrolidin-3-yl}acetic acid