2,2,2,2',3',4'-Hexafluoroacetophenone

5-{[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pyridin-2-yl]formamido}-3-methylpentanoic acid

5-{[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexyl]formamido}-3-methylpentanoic acid

3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-{methyl[4-(propan-2-yl)oxolan-3-yl]carbamoyl}propanoic acid

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

(S)-1-(5-Chloropyridin-2-yl)propan-2-amine

(2R,3S)-3-(benzyloxy)-2-{[4-bromo-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)phenyl]formamido}butanoic acid

2-{1-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]pyrrolidin-3-yl}acetic acid

(3R)-1-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoyl]piperidine-3-carboxylic acid

3-[(2R,3S)-3-(benzyloxy)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]cyclopentane-1-carboxylic acid

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