rac-3-{1-[(1R,2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]-N-(propan-2-yl)formamido}propanoic acid

2-{[(Benzyloxy)carbonyl](pyridin-3-yl)amino}acetic acid

2-{1-[(Benzyloxy)carbonyl]pyrrolidin-3-yl}-2,2-difluoroacetic acid

(1RS,2SR)-2-{[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]methyl}cyclopropane-1-carboxylic acid

1-{1-[(Benzyloxy)carbonyl]-3-hydroxyazetidin-3-yl}cyclobutane-1-carboxylic acid

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

methyl (2S,3S)-3-(2,2-dimethylpropyl)pyrrolidine-2-carboxylate

3-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanamido]methyl}-2,2-difluorocyclopropane-1-carboxylic acid

ethyl (2S,3S)-3-(2,2-dimethylpropyl)pyrrolidine-2-carboxylate

(2S,3S)-1-[(benzyloxy)carbonyl]-3-(2,2-dimethylpropyl)pyrrolidine-2-carboxylic acid

(3S)-3-amino-3-(2,4,5-trimethoxyphenyl)propan-1-ol