Arboricine and arboricinine, unusual tetracyclic indole regioisomers from Kopsia |
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| Authors: | Kuan-Hon Lim Toh-Seok Kam |
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| Institution: | a Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
b The Kitasato Institute, 5-9-1, Shirokane, Minato-ku, Tokyo 108-8642, Japan |
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| Abstract: | A pair of unusual regioisomeric tetracyclic indoles of the corynantheine-type, arboricine and arboricinine were obtained from the Malayan Kopsia arborea. The structures were established by spectroscopic analysis and a possible biogenetic link between the alkaloids is presented. |
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| Keywords: | Alkaloids Indoles NMR Plants |
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