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In the title compound, C 47 H 34 BrNO 3 , the central benzene ring makes a dihedral angle of 42.71 (7)° with the bromo­phenyl ring. The pyrrolidine ring adopts an envelope conformation. The mol­ecular structure is stabilized by weak intra­molecular C—H⋯O inter­actions and the crystal packing is stabilized by weak inter­molecular C—H⋯π inter­actions.

acta crystallographica. section e

1′-(4-Bromophenyl)-4′-{4-[(2-oxo-1,2,3,4-tetrahydronaphthalen-2-ylidene)methyl]phenyl}-3′′,4′′-dihydroacenaphthylene-1-spiro-2′-pyrrolidine-3′-spiro-2′′-naphthalene-2,1′′(1<i>H</i>,2′′<i>H</i>)-dione

1′-(4-Bromophenyl)-4′-{4-[(2-oxo-1,2,3,4-tetrahydronaphthalen-2-ylidene)methyl]phenyl}-3′′,4′′-dihydroacenaphthylene-1-spiro-2′-pyrrolidine-3′-spiro-2′′-naphthalene-2,1′′(1H,2′′H)-dione