Terretonins E and F, Inhibitors of the Mitochondrial Respiratory Chain from the Marine-Derived Fungus Aspergillus insuetus

Supporting Information Available: 1D and 2D NMR spectra for terretonins E and F. This material is available free of charge via the Internet at http://pubs.acs.org.[EN] Two new meroterpenoids, terretonins E and F (1, 2), together with three known compounds, aurantiamine (3), linoleic acid, and uridine, were isolated as fermentation products of the marine-derived fungus Aspergillus insuetus, which was associated with the sponge Petrosia ficiformis. Structures of all isolates were elucidated employing spectroscopic methods, mainly by two-dimensional NMR techniques. Compounds 1-3 showed activity as inhibitors of the mammalian mitochondrial respiratory chain.We acknowledge ICB and ITQ NMR Service (D. Melck and E. Mateos) and E. Estornell and V. Romero for biological assay support. We would like to thank the R&D&I Linguistic Assistance Office, Universidad Politecnica de Valencia (Spain), for granting financial support for the linguistic revision of this paper. This work has been supported through European Social Fund (ESF).López Gresa, MP.; Cabedo Escrig, N.; Gonzalez-Mas, MC.; Ciavatta, ML.; Avila, C.; Primo Millo, J. (2009). Terretonins E and F, Inhibitors of the Mitochondrial Respiratory Chain from the Marine-Derived Fungus Aspergillus insuetus. Journal of Natural Products. 72(7):1348-1351. doi:10.1021/np900085nS1348135172