exo-3-Oxa-9-azabicyclo[3.3.1]nonan-7-ol

2-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-difluoropropanamido]pent-4-ynoic acid

rac-(1R,2R,4S)-7-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]-7-azabicyclo[2.2.1]heptane-2-carboxylic acid

4-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxan-3-yl]acetamido}pentanoic acid

2-{4-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]oxan-3-yl}acetic acid

3-{2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxan-3-yl]-N-methylacetamido}propanoic acid

2-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-3-methylbutanoyl}-2-azabicyclo[4.1.0]heptane-1-carboxylic acid

rac-(1R,6S)-2-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylpentanoyl]-2-azabicyclo[4.1.0]heptane-1-carboxylic acid

(2S,3R)-2-{2-[(1RS,2SR)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentyl]acetamido}-3-methoxybutanoic acid

(3R)-3-{[(1RS,5SR)-5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohex-3-en-1-yl]formamido}hexanoic acid

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