小本山葡萄及羅氏鹽膚木蟲?成份之研究

林煥哲

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College of Pharmacy > Master and Ph.D. program, School of Pharmacy

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小本山葡萄及羅氏鹽膚木蟲?成份之研究

Studies on the Constituents from Vitis thunbergii and the Galls of Rhus semialata

林煥哲 , Masters　　Advisor：徐鳳麟　　

繁體中文

小本山葡萄；羅氏鹽膚木；蟲； Vitis thunbergii ； Rhus semialata ； Galls

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Natural Products from plants and microorganisms traditionally have provided the pharmaceutical industry with one of its most important sources of " lead compounds " in the search for new drugs and medicines. In this context, particular attention has been given by various groups in the Far East, Europe, and America to those traditional herbal medicines rich polyphenols (vegetable tannins). In the 1960''s the advent of new methods of isolation and analysis gradually revolutionized the depth of scientific understanding and appreciation of this field; natural polyphenols become available as single pure entities, and this has made possible recent extensive studies of the relationship of structure to biological and pharmacological activity.Therefore, a chemical investigation of polar compounds in Vitis thunbergii S. et Z. and Rhus semialata Murr. var. roxburghii DC were performed. Vitis thunbergii S. et Z. ( Vitaceae ). In the past, their polar constituent s and related compounds are still remained to be investigated. The leaves were extract with 60 % aqueous acetone. By means of various column chromatographies, six compounds were isolated and purified. The structures of these compounds were elucidated as Caffeic acid (1), Quercetin-3-O-galactoside (2), Quercitrin (3), Rutin (4), Narcissin (5), Luteolin-7-O-glucoside (6). Among them, Caffeic acid ( 1) were the major components. Chinese galls are formed on Rhus chinensis Mill ( Fam. Anacardiaceae ) owing to the stings of certain plant lice. Galls are used as a source of tannic acid. Rhus semialata Murr. var. roxburghii DC., an allied plant of Rhus semialata Murr ., the galls were extract with 60 % aqueous acetone. By means of various column chromatographies, seventeen compounds were isolated and purified. The structures of these compounds were elucidated as Shikimic acid (7), Protocatechuic acid (8) , Gallic acid (9), Methyl gallate (10), Digallic acid (11) , Methyl digallate ( 12), 1-O-galloyl-β-D-glucose (13) , 1,2,3,4,6-penta-O-galloyl-β-D-glucose (14) , (+)-Catechin (15), Eriodictyol (16), Luteolin (17), Quercetin (18), (-)-Rhus- flavone (19), Agathisflavone (20), Amentoflavone (21), Butein (22) , p-Hydroxy- acetophenone (23). Among them, Gallic acid were the major components.

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