In the title compound, C24H22N2O3, the indoline and pyrrole-fused naphthoquinone units are both essentially planar [r.m.s.deviations = 0.
042 (3) and 0.133 (3) Å, respectively].The Shorts pyrrole ring adopts a C-envelope conformation.The dihedral angle between the mean planes of the two five-membered rings is 89.
94 (9)°.The O atoms deviate from the mean planes of the pyrrolidine and naphthalene rings by 0.0311 (2), 0.2570 (2) Stretching and 0.
1669 (2) Å.In the crystal, C—H.O interactions generate dimers with R22(16) and R22(18) graph-set motifs.The carbonyl O atom is involved in bifurcated hydrogen bonding.
C—H.π interactions also occur.