Pyridine series

3-OXO-3-PYRIDIN-2-YLPROPIONIC

5-Aminovaleric acid

3,4-Diethoxy-3-cyclobutene-1,2

7-Methylindole

5-methyl-2,3-dihydro-1H-indole

2,3-Dimethylaniline

3-acetylpyridine

3-Nitroaniline

6-Nitroindole

3-Indoleacetonitrile

Indole-3-carboxylic acid

4-Aminophenylacetic acid