4-Chloro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile920966-02-530 % similar 5-(Bromomethyl)pyridine-2-carbonitrile308846-06-230 % similar 1H-Benzimidazole-2-acetonitrile4414-88-430 % similar 4,6-Dichloro-1H-pyrrolo[3,2-c]pyridine67139-79-130 % similar