5''-(4-Chloro-benzyl-idene)-1',1''-dimethyl-3'-phenyl-acenaphthene-1-spiro-2'-pyrrolidine-3'-spiro-3''-pyridine-2,4''-dione.

In the title compound, C(34)H(28)Cl(2)N(2)O(2), the five-membered pyrrolidine ring adopts an envelope conformation and the six-membered piperidinone ring is in a distorted half-chair conformation. The mol-ecular structure shows three intra-molecular C-H⋯O inter-actions and the crystal packing is stabilized through inter-molecular C-H⋯O and C-H⋯π inter-actions.