2-Cyano-3-methyl-6-(trifluoromethoxy)pyridine-5-carbonyl chloride
2-Cyano-3-methyl-4-(trifluoromethoxy)pyridine-6-carbonyl chloride
3-Cyano-6-methoxy-2-(trifluoromethoxy)pyridine-5-carbonyl chloride
5-Cyano-2-methoxy-4-(trifluoromethoxy)pyridine-3-carbonyl chloride