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

rac-2-{1-[(1R,3S)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropanecarbonyl]azetidin-3-yl}propanoic acid

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]-3-methoxypyrrolidine-3-carboxylic acid

2-[N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3,3-trifluoropropanamido]-2-methylpropanoic acid

7-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]heptanoic acid

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

3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3,3-trifluoropropanamido]-2-hydroxypropanoic acid

2-Chloro-N-ethyl-N-(2-fluoroethyl)-1-propanamine

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

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

6-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpropanoyl]-6-azaspiro[2.5]octane-1-carboxylic acid