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