Methyl 4-cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-carboxylate
3-Fluoro-4-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
Methyl 4-cyano-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
3-Fluoro-4-methoxy-2-(trifluoromethoxy)pyridine-6-carboxylic acid