Ethyl 3-fluoro-5-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 4-cyano-5-methoxy-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 5-fluoro-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
6-Cyano-4-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid