4'-(4-Methoxy-phen-yl)-1,1',1''-trimethyl-dispiro-[indoline-3,2'-pyrrolidine-3',3''-pyrrolidine]-2,2'',5''-trione.

In the title compound, C24H25N3O4, the pyrrolidine ring adopts an envelope conformation while the pyrrolidine-2′′,5′′-dione ring adopts a twist conformation. The indoline unit is planar [maximum deviation of −0.050 (9) A] and forms a dihedral angle of 40.36 (4)° with the methoxy­phenyl ring. Intra­molecular C—H⋯O hydrogen bonds are observed. In the crystal, mol­ecules are linked into a two-dimensional network parallel to the ab plane by inter­molecular C—H⋯O hydrogen bonds and C—H⋯π inter­actions.