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Acta Cryst. (2004). E60, o1877-o1879  [ doi:10.1107/S160053680402358X ]

Methyl 2-amino-4-(3-nitrophenyl)-5-oxo-5,6-dihydro-4H-pyrano[3,2-c]quinoline-3-carboxylate dimethylformamide solvate

X.-S. Wang, Z.-S. Zeng, D.-Q. Shi, X.-Y. Wei and Z.-M. Zong

Abstract: The title compound, C20H15N3O6·C3H7NO, was synthesized by the reaction of methyl 2-cyano-3-(3-nitrophenyl)acrylate and 4-hydroxyquinolin-2-one in ethanol, catalysed by KF-alumina. X-ray analysis reveals that the pyran ring adopts a boat conformation.

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