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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 ?-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 intra-molecular N-H?O hydrogen bond. The five-membered heterocycle is disordered over two envelope conformations in a 0.35:0.65 ratio.

SUBMITTER: Shishkina SV

PROVIDER: S-EPMC2961529 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature

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2-Bromo-methyl-N-isopropyl-7,8-dimeth-oxy-1,2-dihydro-1,3-oxazolo[3,2-a]quinoline-4-carboxamide.

Shishkina Svetlana V SV Shishkin Oleg V OV Ukrainets Igor V IV Bereznyakova Nataliya L NL Davidenko Alexandra A AA

Acta crystallographica. Section E, Structure reports online 20080510 Pt 6

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. ...[more]

PMID: 21202555

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