A New Antifungal Phenolic Glycoside Derivative, Iridoids and Lignans from Alibertia sessilis (Vell.) K. Schum. (Rubiaceae)
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چکیده
Um novo derivado fenólico glucosilado antifúngico, 3,4,5-trimetoxifenil-1-O-β-D-(5-Osiringoila)-apiofuranosil-(1→6)-β-D-glicopiranosideo (1), juntamente com quatro iridóides conhecidos, ácido geniposídico (2), geniposídeo (3), 6α-hidroxigeniposideo (4) e 6βhidroxigeniposideo (5); duas lignanas, (+)-lioniresinol-3α-O-β-D-glicopiranosideo (6), (-)lioniresinol-3α-O-β-D-glicopiranosideo (7); e dois ácidos fenólicos, ácidos clorogênico (8) e salicílico (9) e D-manitol (10), foram isolados do extrato etanólico dos galhos de Alibertia sessilis. As estruturas de 1 e dos compostos conhecidos foram determinadas por análise espectroscópica. Todos os compostos isolados foram avaliados quanto à atividade antifúngica frente aos dois fungos fitopatogênicos Cladosporium cladosporioides e C. sphaerospermum por bioautografia direta.
منابع مشابه
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تاریخ انتشار 2007