2-Cyano-4-methyl-5-(trifluoromethoxy)pyridine-3-sulfonyl chloride
6-(Chloromethyl)-2-cyano-4-iodo-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-cyano-3-iodo-4-(trifluoromethoxy)pyridine
2-Cyano-3-methyl-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride