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