Ethyl 5-cyano-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 4-cyano-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
2-Cyano-5-fluoro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Methyl 5-(chloromethyl)-4-cyano-3-(trifluoromethoxy)pyridine-2-acetate