Acta Cryst. (2008). E64, o1031  [ doi:10.1107/S1600536808013378 ]

2-Bromomethyl-N-isopropyl-7,8-dimethoxy-1,2-dihydro-1,3-oxazolo[3,2-a]quinoline-4-carboxamide

S. V. Shishkina, O. V. Shishkin, I. V. Ukrainets, N. L. Bereznyakova and A. A. Davidenko

Abstract: In the title compound, C₁₈H₂₁BrN₂O₅, conjugation between the -donating N-C-O fragment and the -withdrawing carbonyl group results in considerable redistribution of the electron density within the dihydropyridinol ring. This effect is also promoted by the formation of an intramolecular N-HO hydrogen bond. The five-membered heterocycle is disordered over two envelope conformations in a 0.35:0.65 ratio.

Online 10 May 2008

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