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