2-(4-Cyano-5-(difluoromethyl)-6-methoxypyridin-2-yl)acetic acid

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

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

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

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

3-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpropanamido]cyclohexyl}propanoic acid

rac-(1R,2R,4S)-7-(2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethyl]sulfanyl}acetyl)-7-azabicyclo[2.2.1]heptane-2-carboxylic acid

rac-(1R,2R,4S)-7-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-ynoyl]-7-azabicyclo[2.2.1]heptane-2-carboxylic acid

rac-(1R,2R,4S)-7-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]-7-azabicyclo[2.2.1]heptane-2-carboxylic acid

2-({3-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]propanamido}oxy)propanoic acid

rac-(1R,6S)-2-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]-2-azabicyclo[4.1.0]heptane-1-carboxylic acid