N-(2,6-Dimethyl-3-oxo-1-thia-4-aza­spiro­[4.5]dec-4-yl)-2-hydr­oxy-2,2-di­phenyl­acetamide

In the title compound, C(24)H(28)N(2)O(3)S, the pendant methyl C atom bonded to the cyclo­hexane ring is disordered over two sites in a 0.580 (11):0.420 (11) ratio. The cyclo­hexane ring adopts a distorted chair conformation while the thia­zolidine ring has an envelope conformation. The two phenyl rings make a dihedral angle of 71.8 (2)° with each other. The conformation is stabilized by an intra­molecular N—H⋯O hydrogen bond. In the crystal structure, an inter­molecular hydrogen bond O—H⋯O occurs.