tert-Butyl 4-(((3-chloroquinoxalin-2-yl)sulfinyl)methyl)piperidine-1-carboxylate

2-{1-[2-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]pyrrolidin-3-yl}acetic acid

2-{1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]-N-(propan-2-yl)formamido}acetic acid

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

2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methyl-N-(2-methylpropyl)pentanamido]acetic acid

4-({4-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclohexyl}formamido)butanoic acid

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2,3-trimethylcyclohexyl]formamido}acetic acid

(2S,4S)-1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]-4-hydroxypyrrolidine-2-carboxylic acid

3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hex-4-ynamido]cyclohexane-1-carboxylic acid

2-[(2S)-1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1-methyl-1H-pyrazole-5-carbonyl]pyrrolidin-2-yl]acetic acid

2-[(2S)-1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]pyrrolidin-2-yl]acetic acid