3-Cyano-5-(fluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine
Ethyl 6-cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-cyano-2-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-5-acetate