Constituintes químicos de Luehea divaricata Mart. (Tiliaceae)

Química Nova

Júlio Cesar Akio Tanaka²  Cleuza Conceição Da Silva²  Benedito Prado Dias Filho¹  Celso Vataru Nakamura¹  João Ernesto De Carvalho¹  Mary Ann Foglio¹ 

[1] ,Universidade Estadual de Maringá Departamento de Química Maringá PR

关键词: Luehea divaricata;    triterpenes;    flavonoids;   

DOI  :  10.1590/S0100-40422005000500020

来源: SciELO

【 摘 要 】

Chemical studies of the leaves of L. divaricata afforded 3beta-p-hydroxybenzoyl-tormentic acid, a triterpene with an ursene-type skeleton, a mixture whose main compound was an oleanene derivative, the maslinic acid, a C-glycoside flavone, vitexin and glucopyranosylsitosterol. A flavonoid, characterized as (-)-epicatechin, which belongs to the flavan-3-ol class, was isolated from the stem's bark. The structures of the compounds were elucidated by spectroscopic analysis. The antibacterial, antifungal and antiproliferative activities of the crude methanolic extracts of leaves and bark were evaluated and the antibacterial properties of the fractions of the barks were also investigated.

【 授权许可】

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