(1,2,3,4-Tetrahydro-carbazol-9-yl)-acetic acid

(4-Nitro-imidazol-1-yl)-acetic acid

1-(3-Methoxy-phenoxy)-3-methylamino-propan-2-ol

2-Amino-4-(1H-benzo[d]imidazol-2-yl)butyric acid

3-(1-Methyl-1H-benzoimidazol-2-yl)-propan-1-ol

2-(4-Bromo-benzoylamino)-6-methyl-4,5,6,7-tetrahydro-benzo[b]thiophene-3-carboxylic acid

7,8,9,10-Tetrahydro-6H-cyclohepta[b]quinoline-11-carboxylic acid

4,5,6,7-Tetrahydro-1H-imidazo[4,5-c]pyridine-6-carboxylic acid

7,9-Dimethyl-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-4-carboxylic acid

9H-1,3,4,9-Tetraaza-fluorene-2-thiol

4-(1,3-Dihydro-isoindol-2-yl)-2-hydroxy-benzoic acid