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Antimicrobial activity of the marine alkaloids, clathrodin and oroidin, and their synthetic analogues [Elektronski vir]Zidar, Nace ...Marine organisms produce secondary metabolites that may be valuable for the development of novel drug leads as such and can also provide structural scaffolds for the design and synthesis of novel ... bioactive compounds. The marine alkaloids, clathrodin and oroidin, which were originally isolated from sponges of the genus, Agelas, were prepared and evaluated for their antimicrobial activity against three bacterial strains (Enterococcus faecalis,Staphylococcus aureus and Escherichia coli) and one fungal strain (Candida albicans), and oroidin was found to possess promising Gram-positive antibacterial activity. Using oroidin as a scaffold, 34 new analogues were designed, prepared and screened for their antimicrobial properties. Of these compounds, 12 exhibited >80% inhibition of the growth of at least one microorganism at a concentration of 50 [micro]M. The most active derivative was found to be 4-phenyl-2-aminoimidazole 6h, which exhibited MIC90 (minimum inhibitory concentration) values of 12.5 [micro]M against the Gram-positive bacteria and 50 [micro]M against E. coli. The selectivity index between S. aureus and mammalian cells, which is important to consider in the evaluation of a compound's potential as an antimicrobial lead, was found to be 2.9 for compound 6h.Source: Marine drugs [Elektronski vir]. - ISSN 1660-3397 (Vol. 12, no. 2, 2014, str. 940-963)Type of material - e-article ; adult, seriousPublish date - 2014Language - englishCOBISS.SI-ID - 3602801
Author
Zidar, Nace |
Montalvão, Sofia |
Hodnik, Žiga, farmacevt |
Nawrot, Dorota A. |
Žula, Aleš |
Ilaš, Janez |
Kikelj, Danijel |
Tammela, Päivi |
Peterlin-Mašič, Lucija
Topics
marine alkaloid |
Agelas |
clathrodin |
oroidin |
pyrrole-2-aminoimidazole |
antibacterial |
morski organizmi |
bioaktivne substance |
protimikrobne učinkovine |
protibakterijsko delovanje
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Zidar, Nace | 28905 |
Montalvão, Sofia | |
Hodnik, Žiga, farmacevt | 33052 |
Nawrot, Dorota A. | |
Žula, Aleš | 33054 |
Ilaš, Janez | 24400 |
Kikelj, Danijel | 01463 |
Tammela, Päivi | |
Peterlin-Mašič, Lucija | 19317 |
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