| Diterpenoids from Neoboutonia glabrescens (Euphorbiaceae). | |
| | |
MedLine Citation:
|
PMID: 12943778 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
Glabrescin, a daphnane diterpenoid, neoboutonin, a degraded diterpenoid with a novel skeleton, and neoglabrescins A and B, two rhamnofolane derivatives, have been isolated from the stem bark of Neoboutonia glabrescens Prain (Euphorbiaceae), together with the known tigliane derivative, baliospermin, and the known daphnane, montanin. Other constituents include squalene, 3-acetylaleuritolic acid, oleanolic acid and sitosterol, and the phenolic compounds 9-methoxy-1,7-dimethylphenanthrene and 2,3,8-tri-O-methylellagic acid. The structures were assigned on the basis of spectral studies and comparison with published literature data. The structures of neoglabrescins A and B were derived for their acetylated derivatives and, in the case of neoglabrescin A, confirmed by X-ray crystallographic analysis. |
| | |
Authors:
|
Alembert T Tchinda; Apollinaire Tsopmo; Mathieu Tene; Pierre Kamnaing; David Ngnokam; Pierre Tane; Johnson F Ayafor; Joseph D Connolly; Louis J Farrugia |
Related Documents
:
|
7175708 - Potential radiosensitizing agents iii: 2-nitro-4-acetylimidazole analogs. 3218978 - The effect of benzoic acid derivatives on nicotiana tabacum growth in relation to pr-b1... 12678828 - Molecular diversity of hydroxamic acids: part i. solution- and solid-phase synthesis. 19904348 - Magnetic chiral ionic liquids derived from amino acids. 21624828 - Competitive biosorption of acid blue 25 and acid red 337 onto unmodified and cdab-modif... 1643248 - Oligomerization of indole-3-carbinol in aqueous acid. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Phytochemistry Volume: 64 ISSN: 0031-9422 ISO Abbreviation: Phytochemistry Publication Date: 2003 Sep |
Date Detail:
|
Created Date: 2003-08-28 Completed Date: 2004-01-16 Revised Date: 2006-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 0151434 Medline TA: Phytochemistry Country: United States |
Other Details:
|
Languages: eng Pagination: 575-81 Citation Subset: IM |
Affiliation:
|
Department of Chemistry, University of Dschang, Box 67, Dschang, Cameroon. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Crystallography, X-Ray Diterpenes / chemistry, isolation & purification* Euphorbiaceae / chemistry* Models, Molecular Molecular Structure Nuclear Magnetic Resonance, Biomolecular Plant Bark / chemistry Plant Stems / chemistry |
| Chemical | |
Reg. No./Substance:
|
0/Diterpenes |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: A cyclic carbonate and related polyketides from a marine-derived fungus of the genus Phoma.
Next Document: Furanonaphthoquinones, atraric acid and a benzofuran from the stem barks of Newbouldia laevis.