Methyl 6-fluoro-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
5-Fluoro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonamide
2-(Difluoromethyl)-3-hydroxy-5-methoxy-4-(trifluoromethoxy)pyridine
4-Fluoro-5-hydroxy-2-(trifluoromethoxy)pyridine-3-sulfonamide