2-Amino-6-(difluoromethyl)-4-fluoronicotinonitrile

3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhexanamido]oxolane-2-carboxylic acid

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

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

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-oxo-5-(2,2,4-trimethylpyrrolidin-1-yl)pentanoic acid

1-{2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]acetyl}-3-methoxypyrrolidine-3-carboxylic acid

2-(1-{5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,2-oxazol-3-yl}-N-(2-methoxyethyl)formamido)acetic acid

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

(2R,3S)-3-(benzyloxy)-2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]butanoic acid

4-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methylcyclopentyl]formamido}but-2-enoic acid

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-difluoropropanoyl]-3-methylpyrrolidine-3-carboxylic acid