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