| Autor: |
Paululat, Thomas, Katsifas, Efstathios A., Karagouni, Amalia D., Fiedler, HansPeter |
| Zdroj: |
European Journal of Organic Chemistry; November 2008, Vol. 2008 Issue: 31 p5283-5288, 6p |
| Abstrakt: |
Two novel naphthoquinones were produced by the streptomycete Acta 1362. It was determined by HPLCdiodearray screening that freshly isolated actinomycete strains from selected European ecosystems produce new compounds. Grecoketides A and B were isolated and their structures determined. Both compounds have the same aglycon grecoketidone with a sugar sidechain that differs in one of the two attached sugar units. Moreover, the biosynthesis of grecoketidone was studied by feeding singly and fully labelled acetate. The hexaketide formed is cyclized after smode folding. © WileyVCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008 |
| Databáze: |
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