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