%0 Journal Article %T Biotransformation of a tetrahydrofuran lignan by the endophytic fungus Phomopsis Sp. %A Verza %A Michelle %A Arakawa %A Nilton S. %A Lopes %A Norberto P. %A Kato %A Massuo J. %A Pupo %A M£¿nica T. %A Said %A Suraia %A Carvalho %A Ivone %J Journal of the Brazilian Chemical Society %D 2009 %I Sociedade Brasileira de Qu¨ªmica, SBQ %R 10.1590/S0103-50532009000100029 %X the biotrasformation of the tetrahydrofuran lignan, (-)-grandisin, by the endophitic fungus phomopsis sp, obtained from viguiera arenaria, led to the formation of a new compound determined as 3,4-dimethyl-2-(4'-hydroxy-3',5'-dimethoxyphenyl)-5-methoxy-tetrahydrofuran. the metabolite was evaluated against the parasite trypanosoma cruzi, the causative agent of chagas's disease, and showed a trypanocidal activity (ic50 9.8 ¦̀mol l-1) similar to the natural precursor (ic50 3.7 ¦̀mol l-1). %K biotransformation %K 2 %K 5-diaryltetrahydrofuran %K endophytic fungus %K (-)-grandisin %K trypanocidal activity. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0103-50532009000100029&lng=en&nrm=iso&tlng=en