A new polyene macrolide antibiotic, machidamycin, produced by Streptomyces sp. K22-0017

J Antibiot (Tokyo). 2024 May 15. doi: 10.1038/s41429-024-00737-z. Online ahead of print.

Abstract

A new polyene macrolide, machidamycin (1), and a known compound YS-822A (2), were obtained by physicochemical screening from a culture broth of Streptomyces sp. K22-0017. The structures were elucidated using MS and 1D/2D NMR analyses. Compound 1 exhibited weak antifungal activity against Candida albicans and Mucor racemosus. Furthermore, 1 showed stronger antileishmanial activity than the existing drug paromomycin.