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