4-Hydroxy-3-iodo-6-(trifluoromethoxy)pyridine-2-sulfonamide
5-Hydroxy-3-methoxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
6-Hydroxy-3-methoxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-Hydroxy-2-methoxy-6-(trifluoromethoxy)pyridine-5-methanol