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