Acta Cryst. (2012). E68, o118  [ doi:10.1107/S1600536811052883 ]

Ethyl 2-diethylamino-4-oxo-3,5-diphenyl-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidine-7-carboxylate

H.-T. Gao, L. Li, F. Ye and Y.-G. Hu

Abstract: In the title compound, C₂₅H₂₆N₄O₃, the two fused pyrrolo[3,2-d]pyrimidine rings form a dihedral angle of 3.7 (2)°. The two substituent phenyl rings are twisted with respect to the pyrrole and pyrimidine rings, making dihedral angles of 57.2 (2) and 69.0 (2)°, respectively. The ethyl and ethoxy groups are disordered over two positions; the site occupancies are 0.53 (1) and 0.47 (1) for ethyl, and 0.63 (1) and 0.37 (1) for ethoxy. The crystal packing features C-HO hydrogen bonds.

Online 14 December 2011

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