11-[(E)-Benzylidene]-14-hydroxy-8-phenyl-6-thia-3,13-diazaheptacyclo-[13.7. 1.19,13.02,9.02,14.03,7.0 19,23]tetracosa-1(22),15(23),16,18,20-pentaen-10-one

Abstract

In the title compound, C34H28N2O 2S, 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) Å] makes dihedral angles of 28.31 (5) and 31.32 (6)° with the two terminal benzene rings. An intramolecular O - H⋯N hydrogen bond forms an S(5) ring motif. In the crystal, molecules are linked by C - H⋯O and C - H⋯S hydrogen bonds into layers lying parallel to the ac plane. © 2012 International Union of Crystallography.