New antifungal terpenoid glycosides from Alibertia edulis (Rubiaceae)
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Data
2008-01-01
Autores
da Silva, Viviane Candida [UNESP]
Mendes Giannini, Maria José Soares [UNESP]
Carbone, Virginia
Piacente, Sonia
Pizza, Cosimo
Bolzani, Vanderlan da Silva [UNESP]
Lopes, Márcia Nasser [UNESP]
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Wiley-Blackwell
Resumo
Phytochemical investigation from the stems of Alibertia edulis led to the isolation and identification of a new iridoid 6 beta-hydroxy-7-epigardoside methyl ester (1) and a new saponin 3 beta-O-[alpha-L-rhamnopyranosyl-(1 -> 2)-O-beta-D-glucopyranosyl-(1 -> 2)-O-beta-D-glucopyranosyl]-28-O-beta-D-glucopyranoside pomolate (2), along with three known compounds, shanzhiside methyl ester (3), ixoside (4), and 3,4,5-trimethoxyphenyl 1-O-beta-D-apiofuranosyl-(1 -> 6)-O-beta-D-glucopyranoside (5). The structures of 1 and 2 were established on the basis of their spectroscopic data. Iridoid 1 and saponin 2 exhibited moderate inhibitory activities against Candida albicans and C krusei in a dilution assay.
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Helvetica Chimica Acta. Malden: Wiley-blackwell, v. 91, n. 7, p. 1355-1362, 2008.