Ethyl 2-cyano-4-(pyridin-3-yl)butanoate

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

(2S)-3-{[5-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}-2-hydroxypropanoic acid

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

4-(1-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}-N-(propan-2-yl)formamido)butanoic acid

5-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]-4-methylpentanoic acid

(3R)-3-{[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]formamido}heptanoic acid

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

(2R)-1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methylpentanoyl}pyrrolidine-2-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-[(2,4,4-trimethylpentan-2-yl)carbamoyl]propanoic acid

(3R)-3-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)heptanamido]butanoic acid