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In the title compound, C18H14N2O4, the piperazine ring adopts a chair conformation and the dihedral angle between the aromatic rings is 13.09 (9)°. In the crystal, mol­ecules are linked along the c axis by C—H...π and N...π [H(N)–centroid distances = 2.8030 (2) and 3.376 (2) Å] inter­actions between neighbouring mol­ecules.
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