3-(6-Chloropyrazin-2-yl)-4,4,4-trifluorobutanoic acid

(2S,3R)-2-{[(1RS,3SR)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropyl]formamido}-3-hydroxybutanoic acid

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

rac-1-[(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl]-3-methoxypyrrolidine-3-carboxylic acid

rac-5-[(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl]-hexahydro-2H-furo[2,3-c]pyrrole-6a-carboxylic acid

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

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

1-{2-[4-Chloro-3-(trifluoromethyl)phenyl]ethyl}cyclopropan-1-amine

(2R)-2-({5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,2-oxazol-3-yl}formamido)butanoic acid

3-({5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,2-oxazol-3-yl}formamido)butanoic acid

2-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanamido]-1-methylcyclopentane-1-carboxylic acid