A flavone dimer from Ouratea hexasperma

From the leaves of Ouratea hexasperma, the flavone dimer 4′,5,7-trihydroxyflavone-(6→8″)-4‴,5″-dihydroxy-7″-methoxyflavone was isolated in addition to methyl myoinositol. The structures were established by various analyses including 2D-NMR spectroscopy.

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Bibliographic Details
Published in:	Phytochemistry (Oxford) Vol. 51; no. 6; pp. 833 - 838
Main Authors:	Moreira, Isabel C, de Carvalho, Mário G, Bastos, Ana Beatriz F.O, Braz-Filho, Raimundo
Format:	Journal Article
Language:	English
Published:	Amsterdam Elsevier Ltd 01-07-1999 Elsevier
Subjects:	Biological and medical sciences chemical constituents of plants Chemical constitution chemical structure Flavone dimer flavones Fundamental and applied biological sciences. Psychology leaves Methyl myoinositol nuclear magnetic resonance spectroscopy Ochnaceae Ouratea hexasperma Plant physiology and development spectral analysis Spectral data Brazil Spectral data Ochnaceae Ouratea hexasperma Flavone dimer Methyl myoinositol Flavones Molecular structure Dicotyledones Angiospermae Isolation Spermatophyta Dimer
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Description
Summary:	From the leaves of Ouratea hexasperma, the flavone dimer 4′,5,7-trihydroxyflavone-(6→8″)-4‴,5″-dihydroxy-7″-methoxyflavone was isolated in addition to methyl myoinositol. The structures were established by various analyses including 2D-NMR spectroscopy.
ISSN:	0031-9422 1873-3700
DOI:	10.1016/S0031-9422(99)00106-5