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