3-Methoxy-5-nitro-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-Methoxy-5-nitro-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-(Chloromethyl)-6-iodo-2-(trifluoromethoxy)pyridine-4-methanol
5-(Chloromethyl)-2-iodo-4-(trifluoromethoxy)pyridine-3-methanol