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