4-(2-chloro-1H-imidazol-1-yl)-3-methoxybenzaldehyde

rac-3-[(2R,3R)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]oxolane-2-carbonyl]-2-methyl-1,3-thiazolidine-4-carboxylic acid

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

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

4-(1-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]oxolan-2-yl}-N-methylformamido)butanoic acid

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

4-[(5-cyclopropyloxolan-3-yl)carbamoyl]-4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanoic acid

2-{2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopropyl]acetyl}-octahydrocyclopenta[c]pyrrole-3a-carboxylic acid

(3aRS,6aRS)-2-[(2R)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoyl]-octahydrocyclopenta[c]pyrrole-3a-carboxylic acid

4-{1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanoyl]azetidin-3-yl}butanoic acid

4-{1-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanoyl]azetidin-3-yl}butanoic acid