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