Khayanolides A and B, new rearranged phragmalin limonoid antifeedants from Khaya senegalensis

被引：30

作者：

Nakatani, M ^{[1
]}

Abdelgaleil, SAM

Okamura, H

Iwagawa, T

Sato, A

Doe, M

机构：

[1] Kagoshima Univ, Fac Sci, Dept Chem & Biosci, Kagoshima 8900065, Japan

[2] Univ Alexandria, Fac Agr, Dept Pesticide Chem, Alexandria, Egypt

[3] Osaka City Univ, Grad Sch Sci, Dept Chem, Osaka 5588585, Japan

来源：

TETRAHEDRON LETTERS | 2000年 / 41卷 / 33期

关键词：

Khaya senegalensis; meliaceae; rearranged phragmalin limonoids; khayanolides A and B; methyl angolensates; insect antifeedant; X-ray analysis; CD spectrum;

D O I：

10.1016/S0040-4039(00)01080-7

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Khayanolides A and B, two new rearranged phragmalin limonoids, were isolated as insect antifeedants together-with two known rings B,D-seco compounds, methyl angolensate and its 6-hydroxy derivative from the ether extract of the stem bark of Khaya senegalensis. The structure of the new compounds was elucidated by spectroscopic means and the absolute structure of khayanolide A was established by X-ray analysis and CD study. The antifeedant activity is also reported. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：6473 / 6477

页数：5

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