Ethyl 2-cyano-4-methyl-6-(trifluoromethoxy)pyridine-3-acetate
Ethyl 2-cyano-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-carboxylate
Ethyl 2-cyano-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-carboxylate
Ethyl 2-cyano-3-methyl-6-(trifluoromethoxy)pyridine-4-acetate