Acta Cryst. (2007). E63, o3729-o3730 [ doi:10.1107/S1600536807038354 ]
Abstract: The title compound, C15H12N2O4, contains a nearly planar four-membered
-lactam ring, making dihedral angles of 67.01 (13) and 75.21 (11)° with the phenyl and the benzene rings, respectively. A single N-H
O hydrogen bond links molecules into centrosymmetric dimers.
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