Chemical Studies on the Oriental Plant Drugs. XXXI. Sapogenins of the Roots of Platycodon grandiflorum A. DE CANDOLLE. (2). Structure of Platycodigenin
著者所属：Faculty of Pharmaceutical Sciences, University of Tokyo Faculty of Pharmaceutical Sciences, University of Tokyo:(Present address)Institute of Pharmaceutical Sciences, Medical School, Hiroshima University Faculty of Pharmaceutical Sciences, University of Tokyo
The structure of platycodigenin, a spogenin of the saponin of the root of Platycodon grandiflorum A. DC. has been shown to be 2β, 3β, 16α, 23, 24-pentahydroxyolean-12-en-28-oic acid (I) by the nuclear magnetic resonance and mass spectral analyses of platycodigenin and its derivatives. The bromolactone (IX) of I was prepared to determine the absolute structure by the X-ray crystallographic analysis.
