1-[2-Amino-1-(1-methyl-1H-pyrazol-3-yl)ethyl]cyclobutane-1-carboxylic acid

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3,3-trifluoropropanoyl]thiomorpholine-2-carboxylic acid

2-[N-tert-butyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]acetic acid

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

3,5-dichloro-2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpropanamido]benzoic acid

3-{3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]-N-(propan-2-yl)propanamido}propanoic acid

rac-(1R,2S)-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-(1,3-thiazol-5-yl)propanamido]methyl}cyclopropane-1-carboxylic acid

rac-(1R,3S)-3-{[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid

rac-2-({[(1R,3S)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropyl]formamido}oxy)-3-methoxypropanoic acid

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

2-({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)-4-methylhexanoic acid