1-[1-(5-Fluoro-2-methylphenyl)cyclopropyl]ethan-1-one

3-{2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]acetamido}-2,2-difluoropropanoic acid

3-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cycloheptyl]formamido}-2,2-difluoropropanoic acid

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-5-enoyl]azetidin-3-yl}propanoic acid

2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-5-enamido]-3-methoxy-2-methylpropanoic acid

2-(1-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-5-enamido]methyl}cyclobutyl)acetic acid

2-{1-[(2S)-3-(dimethylamino)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]piperidin-2-yl}acetic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-({8-methyl-8-azabicyclo[3.2.1]octan-3-yl}carbamoyl)propanoic acid

1-benzyl-3-[(2S)-3-(dimethylamino)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]pyrrolidine-3-carboxylic acid

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

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(2-hydroxy-3,3-dimethylbutyl)carbamoyl]propanoic acid