4,7-Dimethyl-1-benzothiophene-2-carbaldehyde

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-enamido]oxy}propanoic acid

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

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanamido]-2-methylpentanoic acid

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-dimethylpentanamido]cyclopropyl}acetic acid

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

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-[1-(hydroxymethyl)-2-azabicyclo[2.2.1]heptan-2-yl]-5-oxopentanoic acid

2-{[5-cyano-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methylpentanamido]oxy}acetic acid

rac-4-[(1R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentanecarbonyl]morpholine-3-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(1-methanesulfonylbutan-2-yl)carbamoyl]propanoic acid

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