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