2-hydrazino-5-methoxy-1,3-benzothiazole

6-methyl-1,7-naphthyridin-8-amine

1,8-naphthyridin-3-amine

1,2,3,4-tetrahydro-1,6-naphthyridine-8-carboxylic acid

6-bromo-8-methoxy-1,2,3,4-tetrahydro-1,5-naphthyridine

2-bromo-1,5-naphthyridin-3-amine

2-bromo-7-(bromomethyl)-1,8-naphthyridine

8-bromo-5-methoxy-1,6-naphthyridine

5-bromo-6-methyl-1,7-naphthyridine

6-hydroxy-3H-imidazo[4,5-b]pyridine-7-carboxylic acid

8-chloro-6-methyl-1,7-naphthyridine