Microbial transformation of (+)-nootkatone and the antiproliferative activity of its metabolites
作者:Anna Gliszczyńska、Agnieszka Łysek、Tomasz Janeczko、Marta Świtalska、Joanna Wietrzyk、Czesław Wawrzeńczyk
DOI:10.1016/j.bmc.2011.01.062
日期:2011.4
Six metabolites were obtained as a result of microbial transformation of (+)-nootkatone (1) by the fungal strains: Botrytis, Didymosphaeria, Aspergillus, Chaetomium and Fusarium. Their structure were established as (+)-(4R,5S,7R,9R)-9 alpha-hydroxynootkatone (2), (+)-(4R,5S,7R)-13-hydroxynootkatone (3) and (+)(4R,5S,7R,9R,11S)-11,12-epoxy-9 alpha-hydroxynootkatone (4), (+)-(4R,5S,7R,11S)-11,12-epoksynootkatone (5), (+)-(4R,5S,7R)-11,12-dihydroxynootkatone (6) and (+)-(4R, 5S, 7R)-7,11,12-trihydroxynootkatone (7) on the basis of their spectral data. Two products: (4) and (7) were not previously reported in the literature. The antiproliferative activity of (+)-nootkatone (1) and isolated metabolites (2-7) of its biotransformation has been evaluated. (C) 2011 Elsevier Ltd. All rights reserved.