A Novel Flavane from Carapa guianensis

作     者：漆淑华 吴大刚 马云保 罗晓东 

作者机构：中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室昆明650204 

出 版 物：《Acta Botanica Sinica》 (Acta Botanica Sinica（植物学报：英文版）)

年 卷 期：2003年第45卷第9期

页      面：1129-1133页

核心收录：

学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学] 

基　　金：国家自然科学基金(C30000213) 云南省科委和中国科学院西部之光项目。 

主　　题：Carapa guianensis Meliaceae (-)-epicatechin-3-O-(3 '', 5 ''-di-O-methyl) gallate antifeedant activity 

摘      要：Seven compounds were isolated from the EtOH extraction of the twig of Carapa guianensis Aubl. (Meliaceae). On the basis of spectroscopic methods, their structures were elucidated as (-)-epicatechin-3-O-(3 , 5 -di-O-methyl) gallate (1), (-)-catechin (2), sciadopitysin (3), cleomiscosin B (4), photogedunin (5), chisocheton compound F (6) and odoratone (7), respectively. Among them compound 1 was a new flavane, compounds 2-7 were firstly obtained from this plant, and compound 5 was assigned the C-13-NMR data for the first time. Compound 7 exhibited strong antifeedant activity against Pieris brassicae, and compound 2 exhibited moderate activity, while the n-BuOH portion showed weak activity.