|
|
|
|
|
| ZOGHBI,Maria das G. B; LIMA,Patrícia D. de D. Β.; CUNHA,Maria do P. Socorro C. da; PINTO,Angelo da C.. |
| Pyranojacareubin; 1,5-dihydroxy-6',6'-dimethyl-2H-pyran(2',3':6,7) -6",6"-dim-ethyI-2H,4H-pyran(2",3":2,3)xanthone and a new xanthone l,6-dihydroxy-5-methoxy-6',6'-dim-ethyl-2H-pyran(2',3':3,2)-7-(3,3-dimethylprop-2-enyl)xanthone were isolated from the ether extract of the root bark of Rheedia acuminata together with friedelin and friedelanol. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Guttiferae; Rheedia; Xanthones. |
| Ano: 1993 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671993000300181 |
| |
|
|
| ZOGHBI,Maria das G. B.; LIMA,Patrícia D. de D. B.; CUNHA,Maria do P. Socorro C. da; PINTO,Angelo da C.. |
| Pyranojacareubin; 1,5-dihydroxy-6',6'-dimethyl-2H-pyran(2,,3':6,7) -6",6"-dime-thyl-2H,4H-pyran(2",3":2,3)xanthone and a new xanthone l,6-dihydroxy-5-methoxy-6',6'-dime-thyl-2H-pyran(2',3':3,2)-7-(3,3-dimethylprop-2-enyl)xanthone were isolated from the ether extract of the root bark of Rheedia acuminata together with friedelin and friedelanol. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Guttiferae; Rheedia; Xanthones. |
| Ano: 1994 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671994000200053 |
| |
|
|
| Manojlovic,Nedeljko T; Vasiljevic,Perica J; Gritsanapan,Wandee; Supabphol,Roongtawan; Manojlovic,Ivana. |
| The aim of this study was to investigate metabolites of the lichen Laurera benguelensis. A high-performance liquid chromatographic (HPLC) method has been developed for the characterization of xanthones and anthraquinones in extracts of this lichen. Lichexanthone, secalonic acid D, norlichexanthon, parietin, emodin, teloschistin and citreorosein were detected in the lichen samples, which were collected from two places in Thailand. Components of the lichen were identifed by relative retention time and spectral data. This is the frst time that a detailed phytochemical analysis of the lichen L. benguelensis was reported and this paper has chemotaxonomic signifcance because very little has been published on the secondary metabolites present in Laurera species.... |
| Tipo: Journal article |
Palavras-chave: Anthraquinones; Antioxidant activity; Laurera benguelensis; Xanthones. |
| Ano: 2010 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602010000200004 |
| |
|
|
|
