3-Nitro-5-(trifluoromethoxy)pyridine-4-acetonitrile
5-Nitro-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-Nitro-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-Nitro-2-(trifluoromethoxy)pyridine-5-acetonitrile
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