Chemical constituents of Luehea divaricata Mart. (Tiliaceae)

Química Nova

Foglio, Mary Ann¹  Nakamura, Celso Vataru¹  Silva, Cleuza Conceição da¹  Carvalho, João Ernesto de¹  Dias Filho, Benedito Prado¹  Tanaka, Júlio Cesar Akio¹  Universidade Estadual de Maringá, Maringá¹  Universidade Estadual de Campinas, Campinas¹ 

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 studies of the leaves of L. divaricata afforded 3b-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】

Unknown