Aurantimycins, New Depsipeptide Antibiotics from Streptomyces aurantiacus IMET 43917 Production, Isolation, Structure Elucidation, and Biological Activity.
- 1 January 1995
- journal article
- Published by Japan Antibiotics Research Association in The Journal of Antibiotics
- Vol. 48 (2) , 119-125
- https://doi.org/10.7164/antibiotics.48.119
Abstract
Aurantimycins A (1), B (2) and C (3) were isolated from the mycelium of Streptomyces aurantiacus JA 4570 as new representatives of the azinothricin group of hexadepsipeptide antibiotics. Their structures were settled by X-ray diffraction analysis of crystalline aurantimycin A (1), high field homo- and heteronuclear 2D NMR experiments, high-resolution mass spectrometry and amino acid analysis. Aurantimycins are characterized by a new side chain containing fourteen carbon atoms. They display strong activity against Gram-positive bacteria and cytotoxic effects against L-929 mouse fibroblast cells.Keywords
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