2,3-Dimethyl-1,4-diphenylcyclopenta-1,3-diene

2-Methyl-2-(quinolin-6-yl)propanal

rac-(3aR,6aR)-2-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)but-2-enoyl]-octahydrocyclopenta[c]pyrrole-3a-carboxylic acid

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

4-({5-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,2-oxazol-3-yl}formamido)-3-methylbutanoic acid

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

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

2-[N-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-5-methylhexanamido]-2-methylpropanoic acid

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

2-(2-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,3-thiazol-4-yl}-N-methylacetamido)-2-methylpropanoic acid

4-(2-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-1,3-thiazol-4-yl}acetamido)pentanoic acid