Chemical constituents of Luehea divaricata Mart. (Tiliaceae)

Quimica nova

Foglio, Mary Ann¹  Carvalho, João Ernesto de¹  Silva, Cleuza Conceição da²  Nakamura, Celso Vataru²  Tanaka, Júlio Cesar Akio²  Dias Filho, Benedito Prado² 

[1] Universidade Estadual de Campinas, Campinas;Universidade Estadual de Maringá, Maringá

关键词: Luehea divaricata;    triterpenes;    flavonoids.;   

DOI  :  10.1590/S0100-40422005000500020

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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

【 授权许可】

CC BY