Abstract
Chemical investigation of the marine-derived Streptomyces sp. Act8015 led to the isolation of two cyclic peptide antibiotics, piperazimycins A and B (la, lb). Their structures were confirmed on the basis of a detailed HRESI-MS/MS analysis. Additionally, a new butanolide, 4,10-dihydroxy-10-methyl-dodecan-4- olide (2), and the respective acid, 4,10-dihydroxy-10-methyl-dodecanoic acid (3a) were identified. Further isolated compounds were staurosporin, adenine, indole-3-carboxylic acid, ferulic acid, tryptophol, and three y-butyrolactones: virginiae butanolide E (4e) and Graefe's Factors I (4f) and III (4g). The structures of 2 and 3a were confirmed by detailed ID and 2D NMR studies and MS spectra and by comparison with related structures. A full signal assignment of virginiae butanolide E (4e) is reported here for the first time.
| Original language | English |
|---|---|
| Pages (from-to) | 736-746 |
| Number of pages | 11 |
| Journal | Journal of Antibiotics |
| Volume | 61 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2008 |
Bibliographical note
Funding Information:Acknowledgements We thank Mr. R. Machinek for NMR measurements, F. Lissy for biological activity tests and A. Kohl for technical assistance. P. Facey thanks the Alexander von Humboldt Foundation (AvH) for a research fellowship. Financial support from the BMBF (Project No. 03F0415A) is gratefully acknowledged.
Funding
Acknowledgements We thank Mr. R. Machinek for NMR measurements, F. Lissy for biological activity tests and A. Kohl for technical assistance. P. Facey thanks the Alexander von Humboldt Foundation (AvH) for a research fellowship. Financial support from the BMBF (Project No. 03F0415A) is gratefully acknowledged.
| Funders | Funder number |
|---|---|
| Alexander von Humboldt-Stiftung | |
| Bundesministerium für Bildung und Forschung | 03F0415A |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 14 Life Below Water
Keywords
- Marine-derived streptomyces sp
- Piperazimycins
- γ-butyrolactones
ASJC Scopus subject areas
- Pharmacology
- Drug Discovery
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