5′′-(4-Chlorobenzylidene)-4′-(4-chlorophenyl)-5-fluoro-1′,1′′-dimethylindoline-3-spiro-2′-pyrrolidine-3′-spiro-3′′-piperidine-2,4′′-dione

The piperidine ring of the title compound, C30H26Cl2FN3O2, adopts a twisted chair conformation. The pyrrolidine ring has a twisted envelope structure with the N atom at the flap [displaced by 0.592 (3) Å]. The fluorooxindole, chlorophenyl and chlorobenzylidene groups are planar with r.m.s. deviations of 0.0348, 0.0048 and 0.0048 Å, respectively. The structure is stabilized by intermolecular N—H...O hydrogen bonds.