Structure of 1-(2,6-dimethylphenyl)-<Emphasis Type="Italic">N</Emphasis>-hydroxy-4,4-dimethyl-2,5-dioxo-<Emphasis Type="Italic">N</Emphasis>-phenyl-3-pyrrolidine carboxamide

The title compound is crystallized in the monoclinic space group P2₁/c with cell parameters a = 7.499, b = 13.336, c = 19.390 Å, β = 99.716°, V = 1911.4 ų, Z = 4, D _cal = 1.273 Mg/m³ at T = 120 K. The structure is refined by full-matrix least-squares procedures to final R ₁ = 0.0548 and wR ₂ = 0.1089 for 3424 reflections. Two phenyl rings are noncoplanar with regard to each other and pyrrolidine core. The structure contains intramolecular hydrogen bond.