2-{[(benzyloxy)carbonyl]amino}-3-[3-(propan-2-yl)-1H-1,2,4-triazol-1-yl]propanoic acid

3-(dimethylamino)-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methoxybutanamido]propanoic acid

3-(dimethylamino)-2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxan-4-yl]formamido}propanoic acid

3-(dimethylamino)-2-[7-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)heptanamido]propanoic acid

3-(dimethylamino)-2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]formamido}propanoic acid

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

1-[3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]-3-methoxypiperidine-3-carboxylic acid

(2R,3S)-3-(benzyloxy)-2-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazol-4-yl]acetamido}butanoic acid

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

(2R,3S)-3-(benzyloxy)-2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-fluorophenyl]formamido}butanoic acid

4-(3-aminophenyl)-N-ethylaniline