New triterpene isolated from Eschweilera longipes (Lecythidaceae)

Anais da Academia Brasileira de Ciências

PatrÍcia M. Da Costa¹  MÁrio G. De Carvalho¹ 

关键词: Eschweilera longipes;    Lecythidaceae;    triterpenoids;    Eschweilera longipes;    Lecythidaceae;    triterpenoides;   

DOI  :  10.1590/S0001-37652003000100003

来源: SciELO

【 摘 要 】

The phytochemical studies of Eschweilera longipes Miers (Lecythidaceae) have led to the identification of a new triterpene 3beta, 24-dihydroxyfriedelane, the known 1beta, 2beta, 3beta, 19beta-tetrahydroxyurs-12-en-28-oic acid (1beta-hydroxyeucaphic acid) besides the saponin sitosterol 3betaO-betaD-glucopyranoside. The structures were established from the IR, NMR and mass spectra data including 2D NMR experiments of natural substances and of the acetyl derivative of the new triterpene.

【 授权许可】

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