3-Fluoro-5-iodo-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-Fluoro-2-iodo-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
6-Fluoro-3-iodo-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Fluoro-4-iodo-6-(trifluoromethoxy)pyridine-3-sulfonyl chloride