2-{[6-(Aminomethyl)pyridin-3-yl][(tert-butoxy)carbonyl]amino}ethane-1-sulfonic acid

1-{2-[1-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)cyclobutyl]acetyl}-4-methoxypyrrolidine-3-carboxylic acid

2-{[(3S)-3-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)butanamido]methyl}pentanoic acid

3-(5-Formyl-2-methylphenyl)prop-2-ynoic acid

3-(6-Formylpyridin-3-yl)prop-2-ynoic acid

3-(7-Formyl-2,3-dihydro-1-benzofuran-5-yl)prop-2-ynoic acid

3-[[[8-Hydroxy-3,6-disulfo-7-[2-(2-sulfophenyl)diazenyl]-1-naphthalenyl]carbonyl]amino]-2-propenoic acid

Carbamic acid, N-[3-amino-3-(1-ethyl-1H-pyrazol-4-yl)-1-(1-methylethyl)propyl]-, 1,1-dimethylethyl ester

1-{2-[({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)methyl]-2-methylbutanoyl}-3-(prop-2-en-1-yl)azetidine-3-carboxylic acid

1-[(2S)-2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)-3-methylpentanoyl]-3-(prop-2-en-1-yl)azetidine-3-carboxylic acid

rac-(1R,3S)-3-[2-({[(9H-fluoren-9-yl)methoxy]carbonyl}amino)pent-4-enamido]cyclohexane-1-carboxylic acid