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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Dog-Apparel 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 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) and 0.

1669 (2) Å.In the crystal, C—H.O interactions generate Goalie - Pants - Senior 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.