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