Document Detail

Alkaloids from Spathelia excelsa: their chemosystematic significance.
MedLine Citation:
PMID:  16002107     Owner:  NLM     Status:  MEDLINE    
The methanol extract from the leaves of Spathelia excelsa yielded six alkaloids: 2-(12-oxo-tridecanyl)-3-methoxy-4-quinolone, 2-(10-hydroxy-10-methyldodecanyl)-3-methoxy-4-quinolone, 2-(11-hydroxy-11-methyldodecanyl)-3-methoxy-4-quinolone, 2-(12-hydroxytridecanyl)-3-methoxy-4-quinolone, 7-hydroxy-2-(3-hydroxy-3-methylbutyl)-4-quinolone and 6-hydroxy-2-(3-hydroxy-3-methylbutyl)-4-quinolone, in addition to the known 3-O-beta-d-glucopiranosylsitosterol and (-)-epicatechin. The 2-alkyl-4(1H)-quinolones in S. excelsa display strong similarities with those in Dictyolomatoideae, which contains several 2-alkyl-4-quinolones. The data reported herein thus provide firm support for placing Spathelioideae close to or within the Dictyolomatoideae.
M da Paz Lima; Lisandra Vieira Rosas; M Fátima das G F da Silva; A Gilberto Ferreira; João B Fernandes; Paulo C Vieira
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Phytochemistry     Volume:  66     ISSN:  0031-9422     ISO Abbreviation:  Phytochemistry     Publication Date:  2005 Jul 
Date Detail:
Created Date:  2005-07-11     Completed Date:  2005-10-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0151434     Medline TA:  Phytochemistry     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1560-6     Citation Subset:  IM    
Departamento de Química, Universidade Federal de São Carlos, Caixa Postal 676, 13565-905 São Carlos, SP, Brazil.
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MeSH Terms
Alkaloids / chemistry*,  isolation & purification*
Angiosperms / chemistry*
Magnetic Resonance Spectroscopy
Plant Extracts / chemistry,  isolation & purification
Plant Leaves / chemistry*
Spectrometry, Mass, Electrospray Ionization
Reg. No./Substance:
0/Alkaloids; 0/Plant Extracts

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