1′-Butyl-2-methyl-1′,2,2′,3,4,9-hexahydrospiro[benzo[f]isoindole-1,3′-indole]-2′,4,9-trione

1′-Butyl-2-methyl-1′,2,2′,3,4,9-hexahydrospiro[benzo[f]isoindole-1,3′-indole]-2′,4,9-trione

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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, Potty Training respectively].The 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 Food Art by 0.

0311 (2), 0.2570 (2) 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.