1-(3-Chloro-pyrazin-2-YL)-piperidine-4-carboxylic acid

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

rac-(1R,2S)-2-({2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]acetamido}methyl)cyclopentane-1-carboxylic acid

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

2-{2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]-N-methylacetamido}-2-methylpropanoic acid

3-cyclopropyl-3-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]acetamido}butanoic acid

8-Cyclopropanecarbonyl-1-oxa-8-azaspiro[4.5]decan-4-amine

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

2-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-iodophenyl]formamido}pent-4-enoic acid

4-(2-Bromoethenyl)-2-ethoxyphenyl propanoate

3-cyclopropyl-2-{2-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazol-4-yl]acetamido}propanoic acid