Briarellins J-P and polyanthellin A:: New eunicellin-based diterpenes from the gorgonian coral Briareum polyanthes and their antimalarial activity

被引:54
作者
Ospina, CA
Rodríguez, AD
Ortega-Barria, E
Capson, TL
机构
[1] Univ Puerto Rico, Dept Chem, Rio Piedras, PR 00931 USA
[2] Florida State Univ, Cell & Mol Biol Pathogens Unit, Inst Trop Med & Hlth Sci, Balboa, Panama
[3] Smithsonian Trop Res Inst, Balboa, Ancon, Panama
来源
JOURNAL OF NATURAL PRODUCTS | 2003年 / 66卷 / 03期
关键词
D O I
10.1021/np0204500
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
A new chemical study of the hexane extract of the gorgonian Briareum polyanthes collected in Puerto Rico afforded 10 new diterpenes of the eunicellin class, briarellins 1-9 and polyanthellin A (10), along with the known diterpene briarellin D (11). The structures and relative stereochemistry of metabolites 1-10 were assigned on the basis of NMR studies, chemical methods, and comparisons to the spectral properties of 11. A reassessment of prior structural assignment for briarellin A and two known sclerophytin-type diterpenes, 13 and 14, is proposed. Antimalarial tests on 1-6 and 8-12 indicated that they were active against Plasmodium falciparum.
引用
收藏
页码:357 / 363
页数:7
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