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The title compound, C 24 H 20 Br 2 N 2 O 4 , is an 18-membered tricycle including two isoxazole rings. The asymmetric unit contains one half of the formula unit; a centre of inversion is located at the centroid of the compound. The dihedral angle between adjacent isoxazole and benzene rings is 84.0 (2)°. The compound displays intra- and inter­molecular π–π stacking inter­actions between the isoxazole rings, the shortest centroid–centroid distances being 3.837 (3) and 3.634 (3) Å, respectively. The mol­ecules are stacked in columns along the  a  axis with short Br⋯Br contacts [3.508 (1) Å].

2,10-Bis(3-bromophenyl)-3,7,11,15-tetraoxa-8,16-diazatricyclo[12.2.1.16,9]octadeca-1(16),6(18),8,14(17)-tetraene

2,10-Bis(3-bromophenyl)-3,7,11,15-tetraoxa-8,16-diazatricyclo[12.2.1.1^6,9]octadeca-1(16),6(18),8,14(17)-tetraene