2-Cyano-5-methyl-3-(trifluoromethoxy)pyridine-6-acetic acid
6-Cyano-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Cyano-4-methyl-6-(trifluoromethoxy)pyridine-3-acetic acid
2-Cyano-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-carboxylic acid