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