Modification of the ring nucleus of tetramic acids derived from serine gives chiral heterocyclic libraries that exhibit antibacterial activity, and correlation with various physicochemical parameters indicates that chiral tetramic acids may provide a potentially valuable non-aromatic skeleton for fragment-based drug discovery.
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http://dx.doi.org/10.1111/j.1747-0285.2011.01133.x | DOI Listing |
J Agric Food Chem
September 2024
SynBioC Research Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Ghent, Belgium.
The growing problem of herbicide resistance necessitates the development of novel herbicidal active ingredients, together with other integrated weed management approaches. Natural products are a major source of inspiration for novel actives. In previous research, we identified a 3-acyltetramic acid of microbial origin that inhibited algal growth in marine biofilms, at least in part through inhibition of photosystem II.
View Article and Find Full Text PDFJ Med Chem
September 2024
Department Microbial Drugs, Helmholtz Centre for Infection Research (HZI), German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Inhoffenstrasse 7, 38124 Braunschweig, Germany.
Biofilms represent a key challenge in the treatment of microbial infections; for instance, causes chronic or fatal infections by forming biofilms on medical devices. Herein, the fungus was found to produce a novel family of PKS-NRPS metabolites that are able to disrupt preformed biofilms of . Arcopilins A-F (-), tetramic acids, and arcopilin G (), a 2-pyridone, were elucidated using HR-ESI-MS and one-dimensional (1D) and two-dimensional (2D) nuclear magnetic resonance (NMR) spectroscopy.
View Article and Find Full Text PDFJ Nat Prod
August 2024
Engineering Research Center of Industrial Microbiology, College of Life Sciences, Fujian Normal University, Fuzhou 350117, People's Republic of China.
The development of tuberculosis (TB) therapy has been marked by the discovery of natural-product-derived streptomycin, followed by the introduction of NP-derived rifampicin, representing a significant milestone in the history of TB management. However, TB remains a global challenge, with the emergence of multidrug-resistant highlighting the need for novel therapeutic agents. In this study, a bioinformatic approach was employed to investigate d-amino acid-activating adenylation domains, leading to the identification of cordysetin A (), a novel -decalin tetramic acid antibiotic from the ascomycete fungi .
View Article and Find Full Text PDFNat Prod Rep
August 2024
Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.
Covering: up to December 2023Decalin-containing tetramic acid derivatives, especially 3-decalinoyltetramic acids (3-DTAs), are commonly found as fungal secondary metabolites. Numerous biological activities of this class of compounds, such as antibiotic, antiviral, antifungal, antiplasmodial, and antiprotozoal properties, have been the subject of ongoing research. For this reason, these molecules have attracted a lot of interest from the scientific community and various efforts including semi-synthesis, co-culturing with bacteria and biosynthetic gene sequencing have been made to obtain more derivatives.
View Article and Find Full Text PDFAppl Environ Microbiol
June 2024
Department of Microbial Drugs, Helmholtz Centre for Infection Research, Braunschweig, Germany.
Ash dieback, caused by the fungal pathogen (Helotiales, Ascomycota) is threatening the existence of the European ash, . During our search for biological control agents for this devastating disease, endophytic fungi were isolated from healthy plant tissues and co-cultivated with to assess their antagonistic potential. Among the strains screened, cf.
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