Acta Cryst. (2005). E61, o3259-o3260  [ doi:10.1107/S1600536805028783 ]

8-(4-Chlorophenoxy)-7-(4-chlorophenyl)-1,2,5-trimethylthieno[2',3';2,3]pyrido[4,5-d]pyrimidin-6(7H)-one

J.-C. Liu, H. Peng, X.-G. Meng, M.-W. Ding and H.-W. He

Abstract: In the molecule of the title compound, C₂₄H₁₇Cl₂N₃O₂S, the mean plane of the tricyclic thienopyridopyrimidine system is roughly orthogonal to both benzene planes, the dihedral angles being 107.8 (1) and 99.6 (1)° for the benzene planes in the p-chlorophenoxy and p-chlorophenyl groups, respectively. The dihedral angle formed by the two benzene rings is 101.4 (1)°.

Online 17 September 2005

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