4-Hydroxy-1-methyl-2-oxo-N-(4-oxo-2-propyl-3,4-dihydroquinazolin-3-yl)-1,2-dihydroquinoline-3-carboxamide

Acta Crystallogr C. 2000 Apr 15;56(Pt 4):E168-9. doi: 10.1107/S0108270100003887. Epub 2000 Apr 15.

Abstract

The two bicyclic fragments of the title compound, C(22)H(20)N(4)O(4), are individually planar and are turned with respect to each other by 77.8 (2) degrees. The formation of intramolecular O-H.O and N-H.O hydrogen bonds causes considerable changes in the bond lengths within the amidopyridine fragment.