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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Antimicrobial lexitropsins containing amide, amidine, and alkene linking groups

Anthony, Nahoum Guillaume Hsuan and Breen, D. and Clarke, Joanna and Donoghue, Gavin and Drummond, Allan J. and Ellis, Elizabeth and Gemmell, Curtis G. and Helesbeux, Jean-Jacques and Hunter, Iain. S. and Khalaf, Abedawn and MacKay, Simon and Parkinson, J.A. and Suckling, C.J. and Waigh, R.D. (2007) Antimicrobial lexitropsins containing amide, amidine, and alkene linking groups. Journal of Medicinal Chemistry, 50 (24). pp. 6116-6125. ISSN 0022-2623

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Abstract

The synthesis and properties of 80 short minor groove binders related to distamycin and the thiazotropsins are described. The design of the compounds was principally predicated upon increased affinity arising from hydrophobic interactions between minor groove binders and DNA. The introduction of hydrophobic aromatic head groups, including quinolyl and benzoyl derivatives, and of alkenes as linkers led to several strongly active antibacterial compounds with MIC for Staphylococcus aureus, both methicillin-sensitive and -resistant strains, in the range of 0.1−5 μg mL-1, which is comparable to many established antibacterial agents. Antifungal activity was also found in the range of 20−50 μg mL-1 MIC against Aspergillus niger and Candida albicans, again comparable with established antifungal drugs. A quinoline derivative was found to protect mice against S. aureus infection for a period of up to six days after a single intraperitoneal dose of 40 mg kg-1.