Linear furocoumarins [Psoralens] from ducrosia ismaelis asch

ABSTRACT

The aerial parts of Ducrosia ismaelis afforded three linear furocoumarins after extraction and chromatography of the chloroform- soluble fraction on a column of silica gel. The isolated compounds were found to be oxypeucedanin ethanolate, which has not been previously reported in nature, oxypeucedanin hydrate and saxalin, as assessed by spectral analysis. This is the first report of any furocoumarin from genus Ducrosia. The aqueous layer gave sucrose after chromatography on a column of Sephadex LH-20