5-(4-Fluorophenyl)pent-4-en-2-one

2-{1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazole-5-carbonyl]azetidin-3-yl}acetic acid

1-benzyl-3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazole-5-amido]pyrrolidine-3-carboxylic acid

4-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-4-yl]formamido}-3-methoxybutanoic acid

5-{1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-5-yl]-N-methylformamido}pentanoic acid

4-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]-1-methyl-1H-pyrazole-3-carboxylic acid

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

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

3-cyclobutyl-3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]propanoic acid

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

3-cyclobutyl-3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanamido]propanoic acid