Anthrone and oxanthrone C,O-diglycosides from Picramnia teapensis

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Data

2000-12-01

Autores

Rodriguez-Gamboa, T.
Victor, SR
Fernandes, J. B.
Fo, E. R.
da Silva, MFDF
Vieira, P. C.
Pagnocca, F. C.
Bueno, O. C.
Hebling, MJA
Castro, O.

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Editor

Elsevier B.V.

Resumo

Two C,O-diglycosylated compounds, the anthrone picramnioside F, and the oxanthrone mayoside C, were isolated from the stem bark of Picramnia teapensis, along with the previously reported anthraquinones, 1-O-beta -D- and 8-O-beta -D-glucopyranosyl emodin. The compounds were separated by recycling-HPLC, and their structures were determined on the basis of spectroscopic analysis. CD measurements were used to establish the absolute configuration of the anthrone and oxanthrone. The antifungal activity of 1-O-beta -D- and 8-O--D-glucopyranosyl emodin against Leucoagaricus gongilophorus was shown to be similar to that of the lignan sesamin. (C) 2000 Elsevier B.V. Ltd. All rights reserved.

Descrição

Palavras-chave

Picramnia teapensis, Simaroubaceae, anthraquinone glycosides, anthrone glycoside, oxanthrone glycoside, picramnioside, mayoside, antifungal activity

Como citar

Phytochemistry. Oxford: Pergamon-Elsevier B.V., v. 55, n. 7, p. 837-841, 2000.