Ethyl 6-(chloromethyl)-3-cyano-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 2-(chloromethyl)-3-cyano-5-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 5-(chloromethyl)-2-cyano-3-(trifluoromethoxy)pyridine-4-carboxylate
2-Fluoro-4-(fluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetic acid