Chemical constituents of the roots of Ormocarpum sennoides subsp. zanzibaricum |
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Institution: | 1. Department of Chemistry, Makerere University, P.O. Box 7062, Kampala, Uganda;2. Mountain of the Moon University, P.O. Box 837, Fort Portal, Uganda;3. Institut de Chimie des Substances Naturelles, CNRS – Avenue de la Terresse, 91198 Gif-sur-Yvette, France;4. Eco-Anthropologie et Ethnobiologie, UMR 7206, MNHN, 43 rue Buffon, 75005 Paris, France;5. Sebitoli Chimpanzee Project, GACP UWA Camp, Kibale NP, Fort Portal, Uganda;6. National Museum Natural History, UMR 7245, CNRS, CP 52, 61 rue Buffon, 75231 Paris Cedex 05, France;7. College of Veterinary Medicine, Animal Resources and Biosecurity, P.O. Box 7062, Kampala, Uganda |
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Abstract: | Phytochemical investigation of the roots of O. sennoides subsp. zanzibaricum Brenan & J.B. Gillett resulted in the isolation of three biflavonoids (trime-chamaejasmin, (+)- chamaejasmin, (+)-liquiritigeninyl-(I-3,II-3)-naringenin), one bi-4-phenyldihydrocoumarin (diphysin), one isoflavan (glabridin), one triterpenoid (3-O-acetyloleanoic acid) and a phytosterol (β-sitosterol). Compounds were identified by detailed MS, 1D and 2D NMR spectroscopic analyses. Their absolute configurations were elucidated based on ECD spectra. The previously undescribed trime-chamaejasmin represents a bis-epi-chamaejasmenin C diastereomer. The chemophenetic significance is discussed in detail. The results contribute to the phytochemical characterization of the genus Ormocarpum and suggest a close chemophenetic relationship with other genera within the subfamily Papilionoideae. Furthermore, this report provides baseline data for comparing the two infraspecific taxa of O. sennoides (Willd.) DC. |
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Keywords: | Fabaceae Papilinoideae Trime-chamaejasmin Biflavonoids |
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