2,3-Dihydro-1,4-benzodioxin-2-ethanimidamide

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

1-[4-bromo-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)benzoyl]azetidine-2-carboxylic acid

1-{3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]propanoyl}azetidine-2-carboxylic acid

1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-phenylpropanoyl]azetidine-2-carboxylic acid

1-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methoxybenzoyl]azetidine-2-carboxylic acid

4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-{methyl[1-(1-methylcyclopropyl)ethyl]carbamoyl}butanoic acid

4-[(2,2-difluoroethyl)(ethyl)carbamoyl]-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-difluoro-N-methylpropanamido]-2-methylpropanoic acid

3-(2-{4-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1H-1,2,3-triazol-1-yl}-N-methylacetamido)-2-methylpropanoic acid

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