Abstract
In the title compound, C34H28N2O2S, the piperidine ring adopts a chair conformation. One of the pyrrolidine rings adopts an envelope conformation with the methylene C atom at the flap whereas the other pyrrolidine ring and the thiazolidine ring adopt half-chair conformations. The mean plane of the dihydroacenaphthylene ring system [maximum deviation = 0.067 (1) angstrom] makes dihedral angles of 28.31 (5) and 31.32 (6)(degrees) with the two terminal benzene rings. An intramolecular O-H center dot center dot center dot N hydrogen bond forms an S(5) ring motif. In the crystal, molecules are linked by C-H center dot center dot center dot O and C-H center dot center dot center dot S hydrogen bonds into layers lying parallel to the ac plane.