title: Phytochemical medicinal agents. A quinone-based route to pterocarpins.
abstract: The synthesis of 6,9 di-demethoxy kushecarpin A has been achieved by the coupling of a benzofuran anion with a quinone monoketal followed by a regioselective cyclization and a stereoselective hydrogenation reaction.
authors.affiliation: Department of Chemistry, Iowa State University, Ames, IA 50011, USA.
authors.forename: George A
authors.initials: GA
authors.lastname: Kraus
authors.forename: Jingqiang
authors.initials: J
authors.lastname: Wei