2-(3,4-Dichlorobenzyl)-2,7-diazaspiro[3.5]nonane

(2R)-1-[(1RS,3SR)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropanecarbonyl]-2-methylpyrrolidine-2-carboxylic acid

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

(2S,4R)-1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl}-4-hydroxypyrrolidine-2-carboxylic acid

3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropaneamido}oxolane-3-carboxylic acid

rac-2-({[(1R,2S)-2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropyl]formamido}oxy)propanoic acid

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

3-[(2-{bicyclo[3.1.0]hexan-2-yl}ethyl)carbamoyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

3-[(3-cyclopropoxypropyl)carbamoyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid

4-[(3-cyclopropoxypropyl)carbamoyl]-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

3-[(3-cyclobutoxypropyl)carbamoyl]-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoic acid