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