2,3,4,5-Tetrahydrocyclohepta[b]pyrido[2,1-a]benzimidazole-7-carbonitrile

The title compound, C₁₇H₁₅N₃, is a tetracyclic system in which the atoms of the three unsaturated rings are coplanar to within 0.026 Å. The molecules are stacked in pairs about inversion centres, with the shortest C...C separation being 3.386 (4) Å.

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