A new 3-arylcoumarin from the roots of an Egyptian collection of Lotus polyphyllos

Further investigation of different fractions from Lotus polyphyllos Clarke roots resulted in the isolation of the new 3-arylcoumarin derivative; 4′,6′-dihydroxy-7, 2′-dimethoxy-3- arylcoumarin (5). In addition, the known compounds β-sitosterol, 1-hexacosanol (1), n-tetracosyl p-coumarate (2), 4′-O-methylderrone (4), and quercetin (6) were identified. The structures were determined from spectroscopic data including 1D- and 2D-NMR experiments.