Document Detail


Eremophilanolides and other constituents from the Argentine liverwort Frullania brasiliensis.
MedLine Citation:
PMID:  11809457     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Two eremophilanolides, 5-epidilatanolides A and B, as well as a new natural bibenzyl were isolated from an Argentine collection of the liverwort Frullania brasiliensis, along with the known eudesmane-type sesquiterpene lactones nepalensolide A, nepalensolide B, (+)-frullanolide, and (+)-dihydrofrullanolide, the hopanoid zeorin, the four sterols stigmasta-4,22-dien-3,6-dione, stigmasta-4,22-dien-3-one, stigmasterol, and sitosterol, and a trace amount of atraric acid. The structure and stereochemistry of the eremophilanolides and the bibenzyl were established by a combination of extensive NMR spectroscopy experiments and X-ray crystallographic analysis. Absolute configurations of the new compounds were derived on the basis of CD spectra.
Authors:
Alicia Bardón; Graciela Bovi Mitre; Norma Kamiya; Masao Toyota; Yoshinori Asakawa
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Phytochemistry     Volume:  59     ISSN:  0031-9422     ISO Abbreviation:  Phytochemistry     Publication Date:  2002 Jan 
Date Detail:
Created Date:  2002-01-25     Completed Date:  2002-03-28     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0151434     Medline TA:  Phytochemistry     Country:  United States    
Other Details:
Languages:  eng     Pagination:  205-13     Citation Subset:  IM    
Affiliation:
Instituto de Química Orgánica, Facultad de Bioquímica, Química y Farmacia, Universidad Nacional de Tucumán, Ayacucho 471, Tucumán 4000, Argentina. alisan@unt.edu.ar
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MeSH Terms
Descriptor/Qualifier:
Bibenzyls / chemistry,  isolation & purification
Circular Dichroism
Crystallography, X-Ray
Magnetic Resonance Spectroscopy
Molecular Conformation
Naphthalenes / chemistry,  isolation & purification*
Plants, Medicinal / chemistry*
Chemical
Reg. No./Substance:
0/5-epidilatanolide A; 0/5-epidilatanolide B; 0/Bibenzyls; 0/Naphthalenes; 0/eremophilane compounds

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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