期刊
MARINE DRUGS
卷 10, 期 11, 页码 2571-2583出版社
MDPI
DOI: 10.3390/md10112571
关键词
Streptomyces caelestis; citreamicin; antibacterial; MRSA
资金
- China Ocean Mineral Resources Research and Development Association [DY125-15-T-02]
- King Abdullah University of Science and Technology (KAUST) [SA-C0040/UK-C001]
Four new polycyclic antibiotics, citreamicin theta A (1), citreamicin theta B (2), citreaglycon A (3), and dehydrocitreaglycon A (4), were isolated from marine-derived Streptomyces caelestis. The structures of these compounds were elucidated by 1D and 2D NMR spectra. All four compounds displayed antibacterial activity against Staphylococcus haemolyticus, Staphylococcus aureus, and Bacillus subtillis. Citreamicin theta A (1), citreamicin theta B (2) and citreaglycon A (3) also exhibited low MIC values of 0.25, 0.25, and 8.0 mu g/mL, respectively, against methicillin-resistant Staphylococcus aureus (MRSA) ATCC 43300.
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