Title: Two novel Diels-Alder adducts from Hippocratea celastroides roots and their insecticidal activity M. Jiménez-Estrada, R. Reyes-Chilpa, S. Hernández-Ortega, E. Cristobal-Telésforo, L. Torres-Colín, C.K. Jankowski, A. Aumelas, and M.R. Van Calsteren
Abstract: Two novel compounds, celastroidine A (1 )a nd B( 2), were isolated from the roots of Hippocratea celastroides K. Their structures were elucidated by spectroscopical and X-ray diffraction studies. Celastroidine A ( 1) (C50H74O5) was identified as a Diels-Alder adduct of a triterpene plus a diterpene and celastroidine B ( 2 )a s a beyerane, a type of dimer of two diterpene (C40H60O4). Both compounds could be formed in vivo by a Diels-Alder reaction. Celastroidine A showed some antifeeding activity against the stored grain insect Sitophyllus zeamays.
Publication Year: 2000
Publication Date: 2000-01-01
Language: en
Type: article
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Cited By Count: 2
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