4-(Difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine-3-acetonitrile
Ethyl 5-(bromomethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetate
3-(Difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-(Difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine-2-acetonitrile