Acta Cryst. (2008). E64, o814  [ doi:10.1107/S1600536808008581 ]

(E)-3-(4-Hydroxy-3-methoxybenzylidene)-4-(4-hydroxyphenyl)pyrrolidin-2-one

Y.-F. Zhou, X.-B. Wang, J. Qi and B.-Y. Yu

Abstract: The title compound, C₁₈H₁₇NO₄, was isolated from an ethanol extract of Ophiopogon japonicus. The dihedral angle between the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring is 17.4 (1)°. The 4-hydroxyphenyl ring makes a dihedral angle of 69.74 (6)° with the least-squares plane through the 4-hydroxy-3-methoxyphenyl ring and the pyrrolidine ring. The conformation of the pyrrolidine fragment is similar to a T-form. The crystal structure is stabilized by intermolecular N-HO and O-HO hydrogen bonds.

Online 10 April 2008

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