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