A new microbial metabolite Sch 725424 (1) was isolated from the culture of Kitasatospora sp. The structure elucidation of 1 was accomplished based on NMR spectroscopic analyses as well as extensive structure elucidation of its dehydration product Sch 725428 (2). Compound 1 showed inhibitory activity against Staphylococcus aureus with MIC values 1-2 microg/ml, and also displayed weak antifungal activity against Saccharomyces cerevisiae (PM503) with an MIC 32 microg/ml.
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| http://dx.doi.org/10.1038/ja.2005.22 | DOI Listing |
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