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Note | Regular issue | Vol 53, No. 10, 2000, pp.2233-2240
Published online, 1st January, 1970
DOI: 10.3987/COM-00-8983
Novel Rings B,D-Secolimonoids from the Stem Bark of Khaya senegalensis

Samir A. M. Abdelgaleil, Hiroaki Okamura, Tetsuo Iwagawa, Matsumi Doe, and Munehiro Nakatani*

*Department of Chemistry and Bioscience, Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan


Two new rings B,D-secolimonoids, named khayalactol and 1-O-acetylkhayanolide B, were isolated together with three known rings B,D-secolimonoids, methyl angolensate and its 6-hydroxy and 6-acetoxy derivatives, from the ether extract of the stem bark of a meliaceous plant Khaya senegalensis. The structure of these new compounds was elucidated by spectrospcopic means. The antifeedant property of the isolated compounds is also described.