Glicoalcaloides antifúngicos, flavonoides e outros constituintes químicos de Solanum asperum

Two glycoalkaloids: solamargine and solasonine; three flavonoids: tiliroside, 7-O-α-L-ramnopyranosyl-kaempferol and 3-O-[ß-D-glucopyranosyl-(1→6)-α-L-ramnopyranosyl]-7- O-α-L-ramnopyranosyl-kaempferol, in addition to the tripeptide Leu-Ile-Val, the aminoacid proline and the eicosanoic acid were isol...

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Bibliographic Details
Main Authors: Francisco das Chagas L. Pinto, Daniel Esdras de A. Uchoa, Edilberto R. Silveira, Otília Deusdênia L. Pessoa, Raimundo Braz-Filho, Fernanda M. e Silva, Phellipe N. E. T. Theodoro, Laila S. Espíndola
Format: Article
Language:English
Published: Sociedade Brasileira de Química 2011-01-01
Series:Química Nova
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422011000200021&lng=en&tlng=en
Description
Summary:Two glycoalkaloids: solamargine and solasonine; three flavonoids: tiliroside, 7-O-α-L-ramnopyranosyl-kaempferol and 3-O-[ß-D-glucopyranosyl-(1→6)-α-L-ramnopyranosyl]-7- O-α-L-ramnopyranosyl-kaempferol, in addition to the tripeptide Leu-Ile-Val, the aminoacid proline and the eicosanoic acid were isolated from Solanum asperum (Solanaceae). The structures of all compounds were determined by interpretation of their spectra (IR, MS, ¹H and 13C NMR) and comparison with the literature data. All compounds, except the glycoalkaloids, are being reported for the first time for S. asperum. Solasonine showed strong activity (MIC < 0.24 μg/mL) against four filamentous fungi species of the genera Microsporum and Trichophyton.
ISSN:1678-7064