5-Fluoro-2-iodo-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Methyl 4-(chloromethyl)-6-cyano-2-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-cyano-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-cyano-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate