3-Cyano-5-hydroxy-6-(trifluoromethoxy)pyridine-2-acetic acid
3-Cyano-4-hydroxy-6-(trifluoromethoxy)pyridine-2-acetic acid
Ethyl 5-chloro-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-chloro-4-hydroxy-2-(trifluoromethoxy)pyridine-5-carboxylate