Methyl 2-amino-4-fluoro-5-(4-fluorophenoxy)benzoate

(2R)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}-3-hydroxypropanoic acid

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

3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]-4,4-dimethylpentanoic acid

(2R)-2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-4-(methylsulfanyl)butanoic acid

5-[3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]pentanoic acid

tert-butyl N-[4-hydroxy-4-(thiophen-2-yl)butan-2-yl]carbamate

4-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-3-methylbutanoic acid

rac-5-{[(1R,5S)-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}-2-methylpentanoic acid

5-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]cyclohex-3-ene-1-carboxylic acid

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