Acta Cryst. (2006). E62, o195-o197  [ doi:10.1107/S1600536805040870 ]

5-Methyl-2-(2-nitrophenyloxy)-3-p-tolyl-8,9,10,11-tetrahydrobenzo[4',5']thieno[3',4':5,6]pyrido[4,3-d]pyrimidin-4(3H)-one

H.-L. Chen and H.-W. He

Abstract: In the title compound, C₂₇H₂₃N₄O₄S, the three fused heterocyclic rings are essentially coplanar. The crystal stacking is mainly due to - interactions and intermolecular C-HO hydrogen-bonding interactions.

Online 14 December 2005

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