3-Hydroxy-2-iodo-6-(trifluoromethoxy)pyridine-5-sulfonamide
2-(Difluoromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-3-acetic acid
6-Hydroxy-2-iodo-3-(trifluoromethoxy)pyridine-4-sulfonamide
6-(Difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetic acid