11-[(E)-2-Fluoro-benzyl-idene]-8-(2-fluoro-phen-yl)-14-hy-droxy-6-thia-3,13-diaza-hepta-cyclo-[13.7.1.1(9,13).0(2,9).0(2,14).0(3,7).0(19,23)]tetra-cosa-1(22),15(23),16,18,20-pentaen-10-one.

In the title compound, C(34)H(26)F(2)N(2)O(2)S, an intra-molecular O-H⋯N hydrogen bond forms an S(5) ring motif. The piperidine ring adopts a chair conformation. The thia-zolidine ring and one of the pyrrolidine rings adopt envolope conformations with methyl-ene C atoms at the flap, whereas the other pyrrolidine ring adopts a half-chair conformation. The fluoro-substituted benzene rings form dihedral angles of 32.25 (10) and 38.27 (10)°, respectively, with the mean plane of the dihydro-acenaphthyl-ene ring system [maximum deviation = 0.043 (2) Å]. The dihedral angle between the fluoro-substituted benzene rings is 64.13 (14)°. In the crystal, mol-ecules are linked by weak C-H⋯O, C-H⋯F and C-H⋯S hydrogen bonds into a three-dimensional network.