6-Cyano-4-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine
6-Cyano-2-iodo-3-(trifluoromethoxy)pyridine-4-carboxylic acid
4-(Chloromethyl)-2-cyano-6-iodo-3-(trifluoromethoxy)pyridine
2-Cyano-4-(difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine