Eudesmanolides and epoxycuauthemones from Pluchea quitoc

被引:18
作者
Guilhon, GMSP [1 ]
Müller, AH [1 ]
机构
[1] Fed Univ Para, Dept Quim, Ctr Exatas & Naturais, BR-66075900 Belem, Para, Brazil
关键词
Pluchea quitoc; compositae; eudesmanolides; epoxycuauthemones;
D O I
10.1016/S0031-9422(98)00098-3
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Three new eudesman-8,12-olides named 3 beta-angeloyloxy-4 beta-acetoxy-eudesm-7(11)-en-8 alpha,12-olide; 3 beta-angeloyloxy-4 beta-acetoxy-8 beta-hydroxy-eudesm-7(11)-en-8 alpha,12-olide and 3 beta-angeloyloxy-4 alpha,8 beta-dihydroxy-eudesm-7(11)-en-8 alpha,12-olide and three new epoxycuauthemones, 3 beta-angeloyloxy-7 beta,11-epoxy-4 alpha-hydroxyeudesman-8-one; 4 beta-acetoxy-3 beta-angeloyloxy-7 alpha,11-epoxyeudesman-8-one and 3 beta-angeloyloxy-7 alpha, 11-epoxy-4 alpha-hydroxy-5,6-dehydroeudesman-8 one, together with the furofuran lignan pinoresinol were obtained from the hexane extract and from the chloroform-soluble portion of the ethanolic extract of the aerial parts of Pluchea quitoc. Their structures were deduced by spectroscopic studies, including 2D-shift correlation experiments. (C) 1998 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:1347 / 1351
页数:5
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