3-(3,5-dimethylisoxazol-4-yl)-N-(2-(6-oxo-3-(1H-pyrazol-1-yl)pyridazin-1(6H)-yl)ethyl)propanamide

1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanoyl]-3-hydroxyazetidine-3-carboxylic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{8-hydroxy-2-azabicyclo[3.3.1]nonan-2-yl}-4-oxobutanoic acid

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

2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazole-3-carbonyl]-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-5-carbonyl]-3-methoxypyrrolidine-3-carboxylic acid

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

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{[1-(oxan-3-yl)propyl]carbamoyl}propanoic acid

rac-3-{[(1R,3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]formamido}-2-hydroxypropanoic acid

3-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-3-yl]formamido}-4-methylpentanoic acid

2-{N-tert-butyl-1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-3-yl]formamido}acetic acid