The Chemical Studies on the Oriental Plant Drugs. XIX.1) Some New Constituents of Licorice Root. (1). the Structure of Licoricidin

Abstract

A new isoflavan derivative, licoricidin, C25H32O5, mp 161-162.5°, [α]D22.5°+20° (MeOH) was isolated from licorice root. According to the results mostly deduced from nuclear magnetic resonance and mass spectral analyses, licoricidin would be represented as being 3′, 6-diisopentenyl-2′, 4′, 5-trihydroxy-7-methoxyisoflavan (IXa). © 1968, The Pharmaceutical Society of Japan. All rights reserved.