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