2′,3′-Di­phenyl-4′-p-tolyl­spiro­[iso­thia­chroman-3,5′-isoxazolidin]-4(2H)-one

The title compound, C₃₀H₂₅NO₂S, contains an isoxazolidine ring in a twist conformation with the spiro-C [0.404 (2) Å] and the adjacent C atom [0.266 (2) Å] deviating from the plane of the remaining three atoms. The thia­pyran ring adopts a sofa conformation, with the five C atoms in a common plane (r.m.s.d. = 0.033 Å) and the S atom deviating by 0.984 (2) Å from this plane.