1-(4-Phenylpiperazin-1-yl)-2-(4-(3-(p-tolyl)-1,2,4-oxadiazol-5-yl)piperidin-1-yl)ethanone

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

3-[(1-ethyl-4,4-dimethylpyrrolidin-3-yl)carbamoyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[(1-propyl-1H-pyrazol-4-yl)carbamoyl]butanoic acid

1-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-3-(prop-2-en-1-yl)azetidine-3-carboxylic acid

4-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazol-5-yl]formamido}-4-methylpentanoic acid

2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazol-5-yl]formamido}-5-methylhex-4-enoic acid

2-({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,3-thiazol-5-yl}formamido)pent-4-enoic acid

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

rac-5-{N-ethyl-1-[(2R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolan-2-yl]formamido}pentanoic acid

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