4-Iodo-3-nitro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-Iodo-4-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-Iodo-4-nitro-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-(Chloromethyl)-3-iodo-6-(trifluoromethoxy)pyridine-4-acetonitrile