title: 2-Bromo-methyl-N-isopropyl-7,8-dimeth-oxy-1,2-dihydro-1,3-oxazolo[3,2-a]quinoline-4-carboxamide.
abstract: In the title compound, C(18)H(21)BrN(2)O(5), conjugation between the π-donating N-C-O fragment and the π-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 intra-molecular N-H⋯O hydrogen bond. The five-membered heterocycle is disordered over two envelope conformations in a 0.35:0.65 ratio.
authors.forename: Svetlana V
authors.initials: SV
authors.lastname: Shishkina
authors.forename: Oleg V
authors.initials: OV
authors.lastname: Shishkin
authors.forename: Igor V
authors.initials: IV
authors.lastname: Ukrainets
authors.forename: Nataliya L
authors.initials: NL
authors.lastname: Bereznyakova
authors.forename: Alexandra A
authors.initials: AA
authors.lastname: Davidenko