Ethyl 4-cyano-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylate
4-Cyano-2-methyl-3-(trifluoromethoxy)pyridine-6-acetic acid
Ethyl 5-cyano-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylate
3-Cyano-5-methyl-6-(trifluoromethoxy)pyridine-2-acetic acid