Studies on the Constituents of Sophora Species. XII.1)Constituents of the Aerial Parts of Sophora tomentosa L. (1)2)

Abstract

Two new benzofuran derivatives [I], mp 235—237°, C15H10O5and [II], mp 179—181°, C16H1205, together with l-maackiain, stigmasterol, medicagol, formononetin and 2',4’,4-trihydroxychalone (isoliquiritigenin) were isolated from the aerial parts of Sophora tomentosa L., and the structures of I and II were established to be 2-(2,4'-dihydroxyphenyl)-5,6-methylenedioxybenzofuran and 2-(2'-hydroxy-4’-methoxyphenyl)-5,6-methylenedioxybenzofuran on the bases of chemical and spectral evidence, respectively. © 1978, The Pharmaceutical Society of Japan. All rights reserved.