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