4-Cyclopropyl-2-{[(prop-2-en-1-yloxy)carbonyl]amino}-1,3-thiazole-5-carboxylic acid

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

(S)-2-Amino-3-((S)-2,2-dimethyl-4-oxooxazolidin-5-yl)propanamide

4-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl}-hexahydro-2H-furo[3,2-b]pyrrole-5-carboxylic acid

4-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-5-yl]formamido}-3-methoxybutanoic acid

4-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazol-5-yl]formamido}-2-methylbut-2-enoic acid

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

rac-(1R,2S)-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3,3-trifluoro-2-methylpropanamido]cyclopentane-1-carboxylic acid

8-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]-8-azabicyclo[3.2.1]octane-3-carboxylic acid

8-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropanecarbonyl]-8-azabicyclo[3.2.1]octane-3-carboxylic acid

8-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpropanoyl]-8-azabicyclo[3.2.1]octane-3-carboxylic acid