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Figure 2 Crystal packing of the title compound with intermolecular N—H⋯N hydrogen bonds and C—H⋯π interactions shown as dashed lines. H atoms not involved in intermolecular interactions have been omitted for clarity. Cg1 Cg2 and Cg3 are the centroids of the N4/C12–C16, N2/C7–C11 and N5/C18–C22 rings, respectively. (Symmetry codes: i) x + , −y + 2, z; ii) x + , −y + 1, z; iii) x − , −y + 2, z; iv) x − , −y + 1, z) |