3-Cyclopentyl-1-methyl-2-(1-pyrazolyl)-6-indolecarboxylic acid

rac-1-[(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl]-3-(methoxymethyl)pyrrolidine-3-carboxylic acid

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanoyl]-4,4-difluoropiperidine-3-carboxylic acid

2-(4-{2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]acetyl}morpholin-3-yl)acetic acid

(2S)-2-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]-3-(1H-imidazol-4-yl)propanoic acid

1-{[3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]methyl}cyclopropane-1-carboxylic acid

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbut-2-enamido]-3,3,3-trifluoropropanoic acid

2-{[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]oxy}-3-methoxypropanoic acid

1-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]oxolane-2-carbonyl}piperidine-4-carboxylic acid

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

3-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)thian-4-yl]acetamido}-2,2-difluoropropanoic acid