Methyl 3-cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 4-cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-acetate
Methyl 2-cyano-4-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-acetate