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