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'Triterpenoids' in keywords Facet   Publication Year 1979  [X]
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1Author    M. Manzoor-I-Khuda, Gerhard HabermehlRequires cookie*
 Title    Chemical Constituents of Cor chorus capsularis and C.olitorius (Jute Plant), Part IV* Isolation of Corosolic Acid, Ursolic Acid and corosin and Correlation of Corosin with Tormentic Acid  
 Abstract    Three triterpenoids have for the first time been isolated from fresh undried jute root, ursolic acid as its acetate, corosolic acid as its acetate and indicated to be urs-2a,2/?-diol-12-en-28-oic-acid and oxo-corosin isolated as its acetate-methyl-ester, C36H54O10, m.p. 160 °C, aD-15° (c 0.435%). The 24-carboxyl in corosin-anhydro-lactone-acetate has been reduced to the methyl group and the resultant lactone on acetylation indicated to be identical with tormentic acid lactone acetate. 
  Reference    Z. Naturforsch. 34b, 1320—1325 (1979); received May 14 1979 
  Published    1979 
  Keywords    Triterpenoids, Jute Root, Corchorus capsularis, Corchorus olitorius 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1320.pdf 
 Identifier    ZNB-1979-34b-1320 
 Volume    34 
2Author    GerardJ. Niem, WimJ. Baas, Elisabeth Besson, JeanC. HopinRequires cookie*
 Title    Investigations on Hoya Species. III. Leaf Phenolics and Latex Lipids of Hoya lacunosa Bl.  
 Abstract    Hoya lacunosa leaves contain some main C-glycosylflavonoids, which were identified as: 6-C-arabinosyl 8-C-glucosylapigenin (isoschaftoside), 6-C-glucosyl 8-C-arabinosylapigenin (schaftosi-de) and 6,8-di-C-arabinosylapigenin. In the latex triterpenols were found, often both free and in ester form, of which /?-amyrin, a-amyrin, lupeol, 24-methylenecycloartanol, obtusifoliol and cyclo-eucalenol were identified in the free alcohol fraction. The esters, forming the m ajor part o f the to­ tal lipid fraction, were solely acetates o f some of the above mentioned alcohols. 
  Reference    Z. Naturforsch. 34c, 1125—1128 (1979); received August 31 1979 
  Published    1979 
  Keywords    Hoya lacunosa, Asclepiadaceae, C-Glycosylflavonoids, Latex, Triterpenoids, 4-ar-Methylsterols 
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 TEI-XML for    default:Reihe_C/34/ZNC-1979-34c-1125.pdf 
 Identifier    ZNC-1979-34c-1125 
 Volume    34