Title of article
Khayanolides, rearranged phragmalin limonoid antifeedants from Khaya senegalensis
Author/Authors
Samir A.M. Abdelgaleil، نويسنده , , Hiroaki Okamura، نويسنده , , Tetsuo Iwagawa، نويسنده , , Atsuko Sato، نويسنده , , Ikuko Miyahara and Ken Hirotsu، نويسنده , , Matsumi Doe، نويسنده , , Munehiro Nakatani، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
8
From page
119
To page
126
Abstract
Three new rearranged phragmalin-type limonoids, named khayanolides A, B and C, were isolated as insect antifeedant together with four known rings B,D-seco compounds, seneganolide, methyl angolensate and its 6-hydroxy and 6-acetoxy derivatives from the ether extract of the stem bark of Khaya senegalensis. The structure of 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 of the isolated compounds was also reported.
Keywords
CD study , Meliaceae , Khaya senegalensis , khayanolides A , b and c , rearranged phrogmalin limonoids , seneganolide , methyl angolensate , X-ray analysis , methyl 6-hydroxy and 6-acetoxyangolensates
Journal title
Tetrahedron
Serial Year
2001
Journal title
Tetrahedron
Record number
1081566
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