6-C-METHYLQUERCETIN-3, 3', 4'-TRIMETHYL ETHER FROM THE LEAVES EXTRACT OF PILIOSTIGMA RETICULATUM

  • MA Aderogba Department of Chemistry, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Nigeria
  • EK Okoh Department of Chemistry, Faculty of Science, Obafemi Awolowo University, Ile-Ife, Nigeria
  • AO Ogundaini Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria.
  • BM Abegaz Department of Chemistry, Faculty of Science, University of Botswana , Gaborone
Keywords: Piliostigma reticulatum, Caesalpinaceae, leaves, 2-phenoxychromone, C- methylflavonols, chemotaxonomy

Abstract

From the leaves of Piliostigma reticulatum, three C-methylflavonols: 6-C-methylquercetin-3, 3', 4'-trimethyl ether, a new natural product; 6-C-methylkaempferol-3-methyl ether, 6,8-di-C-methylkaempferol-3,7-dimethyl ether and a 2-phenoxychromone ( Piliostigmin) and were isolated along with quercetin, quercetrin and quercetin-3-O-glucoside. The chemotaxonomic significance of the findings is briefly discussed.

Key Words: Piliostigma reticulatum; Caesalpinaceae; leaves; 2-phenoxychromone; C- methylflavonols; chemotaxonomy.

Nigerian Journal of Natural Products and Medicine Vol.7 2003: 37-38
Published
2004-07-23
Section
Articles

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eISSN: 1118-6267