Seven new monoterpenoid indole alkaloids from Gelsemium elegans
Seven new indole alkaloids were isolated from the roots of Gelsemium elegans Benth. and their structures were determined by spectroscopic analysis and chemical transformation from known alkaloids. Kounaminal (1) is a new koumine-type alkaloid that contains an unusual aminal moiety. Humantenoxenine (...
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Published in | Chemistry, an Asian journal Vol. 6; no. 1; p. 166 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Germany
03.01.2011
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Abstract | Seven new indole alkaloids were isolated from the roots of Gelsemium elegans Benth. and their structures were determined by spectroscopic analysis and chemical transformation from known alkaloids. Kounaminal (1) is a new koumine-type alkaloid that contains an unusual aminal moiety. Humantenoxenine (2) and 15-hydroxyhumantenoxenine (3) are humantenine-type alkaloids that contain a novel β-amino-α,β-unsaturated ketone residue. The other four novel alkaloids are two gelsedilam-related and two gelsenicine-related alkaloids. |
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AbstractList | Seven new indole alkaloids were isolated from the roots of Gelsemium elegans Benth. and their structures were determined by spectroscopic analysis and chemical transformation from known alkaloids. Kounaminal (1) is a new koumine-type alkaloid that contains an unusual aminal moiety. Humantenoxenine (2) and 15-hydroxyhumantenoxenine (3) are humantenine-type alkaloids that contain a novel β-amino-α,β-unsaturated ketone residue. The other four novel alkaloids are two gelsedilam-related and two gelsenicine-related alkaloids. |
Author | Kitajima, Mariko Kogure, Noriyuki Takayama, Hiromitsu Yamada, Yousuke Wongseripipatana, Sumphan |
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BackLink | https://www.ncbi.nlm.nih.gov/pubmed/20960496$$D View this record in MEDLINE/PubMed |
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SubjectTerms | Gelsemium - chemistry Magnetic Resonance Spectroscopy Molecular Structure Plant Roots - chemistry Secologanin Tryptamine Alkaloids - chemistry Secologanin Tryptamine Alkaloids - classification |
Title | Seven new monoterpenoid indole alkaloids from Gelsemium elegans |
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