2-[(5-Fluoropyridin-3-yl)oxy]acetic acid

4-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4,4-difluorobutanoyl]thiomorpholine-2-carboxylic acid

1-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoyl]-4,4-difluoropyrrolidine-3-carboxylic acid

2-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3,3-dimethylbutanoyl]-4-methyl-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

2-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanoyl]-4-methyl-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]-4-methyl-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

2-[(2S,3S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanoyl]-4-methyl-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

2-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]pentanoyl}-4-methyl-2-azabicyclo[2.1.1]hexane-1-carboxylic acid

3-cyclopropyl-4-{[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]formamido}butanoic acid

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

4-{2-[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]ethyl}benzoic acid