4-Cyano-2-(fluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine
3-Cyano-5-(difluoromethyl)-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
4-Chloro-6-nitro-2-(trifluoromethoxy)pyridine-3-methanol
3-Cyano-4-(difluoromethyl)-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine