5-(4-Methoxy­phen­yl)-3,3-dimethyl-2,3,4,5-tetra­hydro-1H-benzo[b]carba­zole-1,6,11-trione chloro­form solvate

In the mol­ecular structure of the title compound, C25H21NO4·CHCl3, the indole­quinone unit is essentially planar and the cyclo­hexen-1-one ring is in an envelope conformation. The dihedral angle between the indole and methoxy­phenyl groups is 81.78 (8)°. The mol­ecules are linked via weak inter­molecular C—H⋯O inter­actions to form dimers and these dimers are stacked approximately down the b axis. The crystal structure is stabilized by weak inter­molecular C—H⋯O inter­actions and C—H⋯π inter­actions.