5-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolane-2-amido]-1-methyl-1H-pyrazole-4-carboxylic acid

(2S)-2-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]propanamido}-3-hydroxypropanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[(4-oxo-1,4-dihydropyridin-2-yl)methyl]carbamoyl}propanoic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-({4-methylbicyclo[4.1.0]heptan-3-yl}carbamoyl)butanoic acid

(2R)-1-[(2S,3R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methoxybutanoyl]-2-methylpyrrolidine-2-carboxylic acid

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

2-methyl-5H,6H,7H-pyrrolo[3,4-b]pyridine dihydroiodide

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

1-[7-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)heptanoyl]azetidine-2-carboxylic acid

(2S,3R)-3-(benzyloxy)-2-{3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}butanoic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolane-2-carbonyl]-2-azabicyclo[2.1.1]hexane-5-carboxylic acid