Ethyl 3-(chloromethyl)-6-cyano-4-(trifluoromethoxy)pyridine-2-acetate
3-Cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxylic acid
Ethyl 5-(chloromethyl)-2-cyano-3-(trifluoromethoxy)pyridine-4-acetate
2-Cyano-6-(fluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylic acid