4-Cyano-6-methoxy-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-Cyano-4-methoxy-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Chloro-6-methyl-4-(trifluoromethoxy)pyridine-3-acetonitrile
3-Cyano-4-methoxy-2-(trifluoromethoxy)pyridine-5-sulfonyl chloride