Abstract
The addition of anthranilic acid to the culture medium of the marine derived Halomonas sp. strain GWS-BW-H8hM completely altered the secondary metabolite pattern relative to the standard conditions. The red-orange color of the culture filtrate extract was the result of the production of 2-aminophenoxazin-3-one (1), chandrananimycin C (5) and three new derivatives of 1 with a previously unknown substitution pattern: 2-amino-, 2-amino-8-benzoyl-, and 2-amino-8-(4-hydroxybenzoyl)-6-hydroxyphenoxazin-3-one (2˜4). The compounds were determined to have antibacterial and cytotoxic activities; a mode of action other than DNA intercalation is discussed.
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Bitzer, J., Große, T., Wang, L. et al. New Aminophenoxazinones from a Marine Halomonas sp.: Fermentation, Structure Elucidation, and Biological Activity. J Antibiot 59, 86–92 (2006). https://doi.org/10.1038/ja.2006.12
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DOI: https://doi.org/10.1038/ja.2006.12
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