2-(2-Bromopropanoyl)-6-hydroxycinnamic acid

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

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

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

2-({1-[4-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-2-methylbutanoyl]azetidin-3-yl}oxy)acetic acid

2-({1-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylbutanoyl]azetidin-3-yl}oxy)acetic acid

2-({1-[3-cyclopropyl-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)propanoyl]azetidin-3-yl}oxy)acetic acid

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

2-({1-[6-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)hexanoyl]azetidin-3-yl}oxy)acetic acid

2-(2-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}-N-[2-(methylsulfanyl)ethyl]acetamido)acetic acid

1-benzyl-3-(2-{3-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]cyclobutyl}acetamido)pyrrolidine-3-carboxylic acid