Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)

organic compounds

pv2626 scheme

Acta Cryst. (2013). E69, o986    [ doi:10.1107/S160053681301386X ]


W.-F. Zhang, J.-H. Xia, Z.-H. Xu, L.-B. Wang and C.-Y. Yu

Abstract: The asymmetric unit of the title compound, C19H19N3O4, contains two molecules with very few conformational differences; a C atom in the pyrimidine ring in one of the molecules is disordered in a 0.688 (15):0.312 (15) ratio. In both molecules, the fused pyridine and pyrimidine rings adopt half-chair conformations. The dihedral angles between the furan and benzene rings are 81.00 (13) and 84.99 (10)° in the two molecules. The molecular structure is consolidated by intramolecular N-H...O hydrogen bonding. In the crystal, C-H...O hydrogen bonds connect the molecules into a three-dimensional network.

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