Abstract

A novel cyclic peptide antibiotic, pargamicin A was isolated from the culture broth of an actinomycete strain. The producing organism, designated ML1-hF4, was identified as a member of the genus Amycolatopsis. Pargamicin A was identified as a novel cyclic hexapeptide antibiotic containing piperazic acid by various spectroscopic analyses. Pargamicin A showed potent antibacterial activity against Staphylococcus aureus strains including MRSA and Enterococcus faecalis/faecium strains including VRE.

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