2-Hydroxy-3-iodo-6-(trifluoromethoxy)pyridine-4-sulfonamide
5-Hydroxy-2-iodo-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-Hydroxy-4-iodo-5-(trifluoromethoxy)pyridine-2-carbonyl chloride
Methyl 6-(difluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxylate