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