From the methylene chloride extract of Ehretia ovalifolia leaves, a new fla
vone derivative named ovalifolin [3-(3-methyl-1-butenyl)-6-methoxy-5,7,4 '
-trihydroxy flavone] has been isolated and identified together with the kno
wn flavone aglycones apigenin, luteolin and the highly methoxylated flavano
l araneosol. The structures of these metabolites have been established on t
he basis of chemical, chromatographic and spectral methods.