3-methyl-N,N-bis(propan-2-yl)piperidin-3-amine

3-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]-2-fluorobenzoic acid

3-(2-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]pentanamido}ethoxy)propanoic acid

2-{1-[(2S)-3-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]cyclobutyl}acetic acid

2-ethyl-2-{3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)ethoxy]propanamido}butanoic acid

(2R)-2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,6-difluorophenyl]formamido}propanoic acid

2-cyclopropyl-2-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-fluorophenyl]formamido}acetic acid

1-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropanecarbonyl]-3-(trifluoromethyl)pyrrolidine-3-carboxylic acid

3-({1-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropanecarbonyl]piperidin-4-yl}oxy)propanoic acid

2-({[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}methyl)-3-methylbutanoic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-N-methyl-2-phenylpropanamido]propanoic acid