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