Crystal structure of (E)-9-(4-nitro-benzyl-idene)-8,9-di-hydro-pyrido[2,3-d]pyrrolo-[1,2-a]pyrimidin-5(7H)-one

Khamid U Khodjaniyazov; Jamshid M Ashurov

doi:10.1107/S2056989016003583

Crystal structure of (E)-9-(4-nitro-benzyl-idene)-8,9-di-hydro-pyrido[2,3-d]pyrrolo-[1,2-a]pyrimidin-5(7H)-one

Acta Crystallogr E Crystallogr Commun. 2016 Mar 4;72(Pt 4):452-5. doi: 10.1107/S2056989016003583. eCollection 2016 Apr 1.

Authors

Khamid U Khodjaniyazov¹, Jamshid M Ashurov²

Affiliations

¹ S. Yunusov Institute of the Chemistry of Plant Substances, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 77, Tashkent 100170, Uzbekistan.
² A. S. Sadikov Institute of Bioorganic Chemistry, Academy of Sciences of Uzbekistan, Mirzo Ulugbek Str. 83, Tashkent 100125, Uzbekistan.

Abstract

The title compound, C17H12N4O3, a pyrido-pyrrolo-pyrimidine derivative, is almost planar. The nitro-benzene ring is inclined to the mean plane of the 8,9-di-hydro-pyrido[2,3-d]pyrrolo-[1,2-a]pyrimidin-5(7H)-one moiety (r.m.s. deviation = 0.023 Å) by 6.8 (1)°. In the crystal, mol-ecules are linked via C-H⋯O and C-H⋯N hydrogen bonds, forming layers parallel to (101).

Keywords: 4-nitrobenzaldehyde; crystal structure; hydrogen bonding; pyridopyrimidine; pyridopyrrolopyrimidine; ylidene derivative.