1′-Butyl-2-methyl-1′,2,2′,3,4,9-hexahydrospiro[benzo[f]isoindole-1,3′-indole]-2′,4,9-trione
In the title compound, C24H22N2O3, the indoline and pyrrole-fused naphthoquinone units are both weboost coax cable 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-membere