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

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