1,3-Bis[(tert-butoxy)carbonyl]piperidine-3-carboxylic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-5-carbonyl]-2-methylpiperidine-3-carboxylic acid

1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-4-methyl-1,3-thiazole-5-carbonyl}-3-hydroxyazetidine-3-carboxylic acid

2-{1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-5-carbonyl]azetidin-3-yl}acetic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-1,3-thiazole-5-amido]cyclobutane-1-carboxylic acid

2-(ethoxymethyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine

1-(1-ethyl-1H-imidazol-5-yl)cyclopropan-1-ol

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

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

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

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