Methyl 3-cyano-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-carboxylate
Methyl 3-cyano-5-(fluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylate
3-Fluoro-2-methoxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Fluoro-6-methoxy-5-(trifluoromethoxy)pyridine-3-carboxylic acid