5-Cyano-4-methyl-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
4-Cyano-2-iodo-3-methoxy-5-(trifluoromethoxy)pyridine
5-(Chloromethyl)-3-cyano-4-iodo-2-(trifluoromethoxy)pyridine
3-Cyano-5-iodo-2-methoxy-4-(trifluoromethoxy)pyridine
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