Abstract
In the course of screening for new antimicrobial compounds, a new antibiotic substance named saccharobipyrimicin was isolated from the leaf-litter actinomycete Saccharothrix sp. MM696L-181F4. The structure of saccharobipyrimicin was elucidated by various spectral methods, mainly single-crystal X-ray analysis and chemical degradation. It revealed that saccharobipyrimicin contained a 2,2'-bipyridine skeletal structure. Saccharobipyrimicin showed moderate and broad-spectrum antimicrobial activity. Two chemical derivatives of saccharobipyrimicin showed weaker antimicrobial activities than that of saccharobipyrimicin against most test microorganisms except two tolC mutants of Escherichia coli and Neisseria gonorrhoeae.
Published Version
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