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