期刊论文详细信息
Journal of the Brazilian Chemical Society | |
Luxenchalcone, a new bichalcone and other constituents from Luxemburgia octandra | |
Alves, Cassia C. Fernandes1  Eberlin, Marcos N1  Universidade Estadual de Campinas, Campinas, Brazil1  Carvalho, Mário G. de1  Universidade Federal Rural do Rio de Janeiro, Seropédica, Brazil1  Silva, Kedma G. S. da1  Universidade Federal de Ouro Preto, Ouro Preto, Brazil1  Werle, Alceni A1  | |
关键词: Luxemburgia octandra; Ochnaceae; flavonoids; bichalcone; terpenoids; | |
DOI : 10.1590/S0103-50532004000100023 | |
学科分类:化学(综合) | |
来源: SciELO | |
【 摘 要 】
Chromatographic fractionation of leaves and branches extracts from Luxemburgia octandra (Ochnaceae) afforded isoliquiritigenin, 3'-hydroxyisoliquiritigenin, b-sitosterol, stigmasterol, lupeol, betulinic acid, the biflavonoid, 4',5,7-trihydroxyflavone-(3'®O®4'")-5",7"-dihydroxyflavanone and a new bichalcone 4,2',4'-trihydroxychalcone-(3®O®4")-2'",4'"-dihydroxychalcone (luxenchalcone). The structures were established from analysis of IR, MS and NMR spectral data, including 2D-NMR experiments of the natural substances and of the luxenchalcone methyl derivative.
【 授权许可】
Unknown
【 预 览 】
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RO201912050579501ZK.pdf | 49KB | download |