N-(2-(4-methoxy-6-methyl-2-oxopyridin-1(2H)-yl)ethyl)-3,5-dimethylisoxazole-4-carboxamide

(3RS,4RS)-1-[(1RS&,3SR&)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropanecarbonyl]-4-methylpyrrolidine-3-carboxylic acid

rac-4-{[(1R,2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cycloheptyl]formamido}butanoic acid

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

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

N-[3-(2-Cyanoacetyl)phenyl]acetamide

2-{4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pent-4-ynoyl]-2-oxopiperazin-1-yl}acetic acid

2-(4-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl}-2-oxopiperazin-1-yl)acetic acid

4-(2-ethyl-6-methylmorpholin-4-yl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-oxobutanoic acid

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

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-[(2-hydroxy-2-methylpropyl)(propyl)carbamoyl]butanoic acid