2-Chloro-5-iodo-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
6-Chloro-4-iodo-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Cyano-5-nitro-6-(trifluoromethoxy)pyridine-2-methanol
2-Chloro-3-iodo-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride