Author's Organization：Faculty of Pharmaceutical Sciences, Toho University Faculty of Pharmaceutical Sciences, Toho University Faculty of Pharmaceutical Sciences, Toho University The Institute of Physical and Chemical Research Research Institute of Chemobiodynamics, Chiba University
From an acetone extract of the reddish violet powder obtained from the surface of the Morus root bark (Morus bombycis Koidz.), a 2-arylbenzofuran derivative was isolated and named mulberrofuran I. Its structure was shown to be 1 on the basis of spectral evidence. Mulberrofuran I is regarded biogenetically as a variation of a Diels-Alder type adduct of a chalcone derivative and a dehydroprenyl-2-arylbenzofuran derivative.
