Flavonol Glycoside from Psorospermum androsaemifofium  

作　　者：Poumale, Poumale Herve Martiat Krebs, Hans Christoph Amadou, Dawe Shiono, Yoshihito Guedem, Alphonsine Nkapwa1 Komguem, Justin Ngadjui, Bonaventure Tchaleu Randrianasolo, RivoarisonI 

机构地区：[1]Department of Bioresource Engineering, Faculty of Agriculture, Yamagata University, Tsuruoka, Yamagata 997-8555, Japan [2]Institut Fur Lebensmitteltoxikologie and Chemische Analytik, Chemische Analytik and Endokrinologie, Stiftung Tierurztliche Hochschule, Bischofsholer Damm 15/123, D-30173 Hannover, Germany [3]Department of Organic Chemistry, Faculty of Science, University of Yaounde I, P.O. Box 812 Yaounde, Cameroon [4]Department of Organic Chemistry, Faculty of Science, University of Antananarivo, Madagascar, P.O. Box 906 Antananarivo 101, Madagascar

出　　处：《Chinese Journal of Chemistry》2011年第1期85-88,共4页中国化学（英文版）

摘　　要：A new flavonol glycoside, 3＇-（4＇＂-（3＇＂＇,4＇＂＇-dihydroxyphenoxy）-2＇＂-hydroxyphenoxy）acanthophorin B （la） to- gether with 3＇-（2＇＂,4＂＇-dihydroxyphenoxy）acanthophorin B （1）, acanthophorin B （2）, vismiaquinone （3）, rheochrysidin （3a）, lupeol acetate and fatty acid were isolated from the chloroform extract of the stem bark of Psorospermum androsaemifolium Baker （Clusiaceae）. The structure of la was determined on the basis of detailed spectroscopic analysis and comparison with the literature. Compounds la and 3a showed moderate antimicrobial activity.A new flavonol glycoside, 3＇-（4＇＂-（3＇＂＇,4＇＂＇-dihydroxyphenoxy）-2＇＂-hydroxyphenoxy）acanthophorin B （la） to- gether with 3＇-（2＇＂,4＂＇-dihydroxyphenoxy）acanthophorin B （1）, acanthophorin B （2）, vismiaquinone （3）, rheochrysidin （3a）, lupeol acetate and fatty acid were isolated from the chloroform extract of the stem bark of Psorospermum androsaemifolium Baker （Clusiaceae）. The structure of la was determined on the basis of detailed spectroscopic analysis and comparison with the literature. Compounds la and 3a showed moderate antimicrobial activity.

关 键 词：Psorospermum androsaemifolium natural products flavonol glycoside CLUSIACEAE HYDROLYSIS acanthophorin B 

分 类 号：TQ464.3[化学工程—制药化工] S433.7[农业科学—农业昆虫与害虫防治]