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