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