1-(2-Hy­droxy­eth­yl)-1′-methyl-4′-(naph­thal­en-1-yl)-1′′,2′′,3′′,4′′-tetra­hydro­dispiro­[indoline-3,2′-pyrrolidine-3′,2′′-naphthalene]-2,1′′-dione

In the title compound, C(33)H(30)N(2)O(3), the pyrrolidine ring adopts an envelope conformation in which the H atom attached the an ortho-C atom deviates from the plane, whereas the cyclo­hexa­none ring in the tetra­hydro­naphthalene fused-ring system adopts a sofa conformation. The oxindoline ring system is almost perpendicular with respect to the mean plane of the pyrrolidine ring, with a dihedral angle of 89.0 (1)°. Five intra­molecular C—H⋯O close contacts are observed. In the crystal, mol­ecules associate via O—H⋯O hydrogen bonds, forming R (2) (2)(14) dimers. In addition, there are weak C—H⋯π inter­actions.