2-(Difluoromethyl)-6-nitro-3-(trifluoromethoxy)pyridine-5-acetonitrile
4-(Difluoromethyl)-2-nitro-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-(Difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine-2-carboxaldehyde