4-Hydroxy-2-iodo-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Hydroxy-2-iodo-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
Ethyl 4-hydroxy-2-iodo-6-(trifluoromethoxy)pyridine-3-acetate
3-Hydroxy-5-iodo-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride