2-(Trimethylsilyl)-2-cyclopenten-1-ol

4-({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)-2-methylbutanoic acid

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

1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl}-3-(methoxymethyl)pyrrolidine-3-carboxylic acid

3-[({2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl}formamido)methyl]-4-methylpentanoic acid

2-{2-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]acetamido}-2-methylpropanoic acid

4-[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetyl]-1,4-oxazepane-6-carboxylic acid

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

(3S)-3-{[(tert-butoxy)carbonyl]amino}-3-{6-chloroimidazo[1,2-a]pyridin-2-yl}propanoic acid

(3S)-3-{[(tert-butoxy)carbonyl]amino}-3-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)propanoic acid

(3R)-3-(1,4-dimethyl-1H-pyrazol-5-yl)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid