4-(3-{[(Tert-butoxy)carbonyl]amino}-4-methoxyphenyl)butanoic acid

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

2-(3-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pentanamido]methyl}cyclopentyl)acetic acid

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

methyl 4-(1-amino-2,2,2-trifluoroethyl)-1-methyl-1H-pyrazole-3-carboxylate

Methyl 8,8-dioxo-8lambda6-thiaspiro[bicyclo[3.2.1]octane-3,3'-pyrrolidine]-4'-carboxylate

Tert-butyl 1-amino-3-[(benzyloxy)methyl]cyclobutane-1-carboxylate

2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-[1,2,4]triazolo[1,5-a]pyridine-6-carboxylic acid

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

2-{[(Tert-butoxy)carbonyl]amino}-3-(pyrrolidin-1-yl)propanoic acid

2-({1-[(Benzyloxy)carbonyl]-4-(3-bromopyridin-4-yl)piperidin-4-yl}oxy)acetic acid