3-Cyano-2-(trifluoromethoxy)pyridine-5-acetonitrile
6-Cyano-2-(trifluoromethoxy)pyridine-3-acetonitrile
4-Cyano-5-(trifluoromethoxy)pyridine-2-acetonitrile
2-Cyano-6-(trifluoromethoxy)pyridine-3-acetonitrile
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