New flavan and unusual chalcone glycosides from Drypetes parvifolia

作     者：Viviane Nadège Nenkep Jovita Chi Shirri Hanh Trinh Van-Dufat Falindor Sipepnou Philippe Vérité Elisabeth Seguin Francois Tillequin Jean Wandji 

作者机构：Department of Organic ChemistryUniversity of Yaounde-1Faculty of ScienceP.O.Box 812YaoundeCameroon Laboratoire de Pharmacognosie de l'Université Paris DescartesUMR/CNRS N 8638Faculté des Sciences Biologiques et Pharmaceutiques4-Avenue de l'Observatoire75006 ParisFrance Laboratoire de Chimie AnalytiqueUFR de Médecine Pharmacie Rouen22-Bid Gambetta76183 Rouen Cedex 1France Laboratoire de PharmacognosieUFR de Médecine Pharmacie Rouen22-Bld Gambetta76183 Rouen Cedex 1France 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2008年第19卷第8期

页      面：943-946页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：One of the authors(J.Wandji)is grateful for grant(No.F/2624-3F)from the International Foundation for Science(Sweden) the sponsorship of the"UniversitéParis Descartes,France"during his multiple research visits in Paris 

主　　题：Drypetes parvifolia Flavonoid glycosides 7-Hydroxy-5-O-(β-D-glucopyranoside) flavan (Z)-4',6'-Dihydroxy-2'-O-(β-D-glucopyr-anoside) chalcone 

摘      要：Two new compounds 7-hydroxy-5-O-（β-D-glucopyranoside） flavan （1） and （Z）-4＇,6＇-dihydroxy-2＇-O-（β-D-glucopyranoside） chalcone （2）, along with eight known compounds, were isolated from the stem bark of Drypetes parvifolia （Euphorbiaceae）. Their structures were established on the basis of spectroscopic analysis and chemical evidence.