13-Benzyl-4,11-dihy-droxy-1,8-diphen-yl-2,9-di-thia-13-aza-dispiro-[4.1.4.3]tetra-decan-6-one.

In the title compound, C(30)H(31)NO(3)S(2), the piperidine ring adopts a distorted chair conformation. The thio-phene rings have twisted conformations about the C-C bonds. The mean plane of the piperidine ring makes a near orthogonal conformation with the toluene ring. Two of the phenyl rings in the structure are positionally disordered over two sets of sites with occupancies of 0.56†(2)/0.44†(2) and 0.672†(16)/0.328†(16). A region of disordered electron density was corrected for using the SQUEEZE [Spek (2015 ▸). Acta Cryst. C71, 9-18] routine in PLATON. The given chemical formula and other crystal data do not take into account the unknown solvent mol-ecule. In the crystal, O-H⋯O hydrogen bonds are observed along with intra-molecular S⋯H, O⋯H, C⋯H and H⋯H contacts.