author={B. Baur and D. Schollmeyer and S. Laufer},
  journal={Acta Crystallographica Section E: Structure Reports Online},
  pages={o555 - o555}
In the title compound, C20H12F2N2O4, the two benzene rings of the tricyclic unit are oriented at a dihedral angle of 30.6 (1)°. The 2,4-difluoroanilino residue is oriented at a dihedral angle of 68.2 (1)° with respect to the phenoxy ring. In the crystal, N—H⋯O hydrogen bonds between the amino group and the carbonyl O atom of the oxepinone ring link the molecules into infinte chains along the c axis. 
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