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Neff, ScottA.,Lee, Sang Un,Asami, Yukihiro,Ahn, Jong Seog,Oh, Hyuncheol,Baltrusaitis, Jonas,Gloer, James B.,Wicklow, Donald T. American ChemicalSociety and American Society of P 2012 Journal of natural products Vol.75 No.3
<P>Seven new compounds (aflaquinolones A–G; <B>1</B>–<B>7</B>) containing dihydroquinolin-2-oneand terpenoid units have been isolated from two different fungal sources.Two of these metabolites (<B>1</B> and <B>2</B>) wereobtained from a Hawaiian fungicolous isolate of <I>Aspergillus</I> sp. (section <I>Flavipedes</I>; MYC-2048 = NRRL 58570),while the others were obtained from a marine <I>Aspergillus</I> isolate (SF-5044) collected in Korea. The structures of these compoundswere determined mainly by analysis of NMR and MS data. Relative andabsolute configurations were assigned on the basis of NOESY data and <SUP>1</SUP>H NMR <I>J</I>-values, comparison of calculatedand experimental ECD spectra, and analysis of a Mosher’s esterderivative of <B>2</B>. Several known compounds, including alantrypinone,aspochalasins I and J, methyl 3,4,5-trimethoxy-2((2-((3-pyridinylcarbonyl)amino)benzoyl)amino)benzoate,and <I>trans</I>-dehydrocurvularin were also encounteredin the extract of the Hawaiian isolate.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jnprdf/2012/jnprdf.2012.75.issue-3/np200958r/production/images/medium/np-2011-00958r_0004.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/np200958r'>ACS Electronic Supporting Info</A></P>