3-Amino-1-[3-(methylsulfanyl)phenyl]propan-1-one

3-[5-cyano-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]-2-methoxypropanoic acid

3-{3-[benzyl(methyl)amino]-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido}-2-fluorobenzoic acid

2-[N-benzyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]acetic acid

2-[N-benzyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methyl-3-phenylpropanamido]acetic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]-5-hydroxypiperidine-3-carboxylic acid

3-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolan-3-yl]formamido}-4,4,4-trifluorobutanoic acid

3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylbutanamido]-4,4,4-trifluorobutanoic acid

(3RS,4RS)-1-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-3,4-dimethylpyrrolidine-3-carboxylic acid

5-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-hexahydro-2H-furo[2,3-c]pyrrole-6a-carboxylic acid

(2R)-4-methoxy-4-oxo-2-{[(1rs,3rs)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]formamido}butanoic acid