3-(Difluoromethyl)-2-methoxy-4-methyl-6-nitropyridine
2-(Difluoromethyl)-5-iodo-6-(trifluoromethyl)pyridine-3-acetonitrile
5-(Bromomethyl)-3-(difluoromethyl)-2-iodopyridine-4-acetonitrile
2-(Difluoromethyl)-5-iodo-4-(trifluoromethyl)pyridine-3-acetonitrile