2-Piperazinecarboxamide, N-ethyl-1-[(6-methoxy-2-pyridinyl)methyl]-

2-{[(2S,3S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanamido]methyl}cyclopropane-1-carboxylic acid

2-{[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]methyl}cyclopropane-1-carboxylic acid

2-{[2-cyclopropyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)acetamido]methyl}cyclopropane-1-carboxylic acid

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

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

4,4',4'',4'''-Ethenetetrayl-tetrakis-benzamidine

1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclopropanecarbonyl}-4-methylpyrrolidine-3-carboxylic acid

rac-2-{1-[(1R,3S)-3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2,2-difluorocyclopropyl]-N-(propan-2-yl)formamido}acetic acid

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

1-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclohexanecarbonyl]-3-methylpyrrolidine-2-carboxylic acid