6-({[3-(furan-2-yl)-6-oxopyridazin-1(6H)-yl]acetyl}amino)hexanoic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentaneamido]bicyclo[3.1.0]hexane-1-carboxylic acid

3-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)oxolane-3-amido]bicyclo[3.1.0]hexane-1-carboxylic acid

rac-(1R,3R,5R)-3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclopentaneamido]bicyclo[3.1.0]hexane-1-carboxylic acid

3-[5-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-4-methylpentanamido]bicyclo[3.1.0]hexane-1-carboxylic acid

3-[2-ethyl-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]bicyclo[3.1.0]hexane-1-carboxylic acid

3-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]pentanamido}bicyclo[3.1.0]hexane-1-carboxylic acid

3-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexane-1-amido]oxolane-3-carboxylic acid

2-({[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]formamido}methyl)pentanoic acid

2-{N-ethyl-1-[3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)bicyclo[3.1.0]hexan-1-yl]formamido}-2-methylpropanoic acid

2-Furancarboxylic acid, 2-[[4-(carboxymethoxy)-3-chloro-5-methoxyphenyl]methylene]hydrazide