Diarylheptanoids from the Rhizome of Alpinia officinarum Hance

Abstract

Six diarylheptanoids, including three new compounds, were isolated from the rhizomes of Alpinia officinarum Hance (Zingiberaceae). The structures of the new compounds were determined to be 7-(4'-hydroxyphenyl)-1-phenyl-4-hepten-3-one (I), 5-methoxy-7-(4'-hydroxyphenyl)-1-phenyl-3-heptanone (II), and 5-methoxy-1,7-diphenyl-3-heptanone (III) on the basis of the spectroscopic data. This is the first time that compound IV, in which both phenyl rings are substituted, has been isolated from Alpinia spp. © 1985, The Pharmaceutical Society of Japan. All rights reserved.