1-(Pentafluoroethyl)cyclobutane-1-carboxylic acid

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

3-(N-ethyl-1-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)-2-methylpropanoic acid

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

4-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanamido]cyclopent-2-ene-1-carboxylic acid

2-[N-tert-butyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2,2-dimethylpropanamido]acetic acid

2-(1-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}-N-(prop-2-en-1-yl)formamido)acetic acid

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

1-{1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl}-3-methylpyrrolidine-3-carboxylic acid

2-({1-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cycloheptyl}formamido)acetic acid

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