Eight linear analogues of the lipopeptide battacin were evaluated for their antibacterial activity against the Gram-positive Staphylococcus aureus. Of this library, the enantiomeric lipopeptide analogue 9.4 exhibited nanomolar inhibitory activity (MIC=200nmol) against S. aureus. Furthermore, this lipopeptide was resilient toward degradation conditions when exposed to rat serum proteases for up to 8h.
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