4-methoxy-3-nitro-pyridine
2-hydroxy-4-methoxy-5-nitro pyridine
2,4-dibromo-5-nitropyridine
aniline
6-bromo-N4-phenyl-3,4-pyridinediamine
(6-bromo-1-phenyl-1H-imidazo[4,5-c]pyridin-2-yl)acetonitrile
(6-bromo-1-phenyl-1H-imidazo[4,5-c]pyridin-2-yl)(hydroxyimino)acetonitrile
4-(6-bromo-1-phenyl-1H-imidazo[4,5-c]pyridin-2-yl)-furazan-3-amine
3-{[2-(4-amino-furazan-3-yl)-1-phenyl-1H-imidazo[4,5-c]pyridin-6-yl]oxy}benzoic acid