Synthesis and antimicrobial activity of binaphthyl-based, functionalized oxazole and thiazole peptidomimetics

Wales, S.M., Hammer, K.A., Somphol, K., Kemker, I., Schröder, D.C., Tague, A.J., Brkic, Z., King, A.M., Lyras, D., Riley, T.V., Bremner, J.B., Keller, P.A. and Pyne, S.G. (2015) Synthesis and antimicrobial activity of binaphthyl-based, functionalized oxazole and thiazole peptidomimetics. Organic and Biomolecular Chemistry, 13 (44). pp. 10813-10824.

Abstract

Thirty two new binaphthyl-based, functionalized oxazole and thiazole peptidomimetics and over thirty five novel leucine-containing intermediate oxazoles and thiazoles were prepared in this study. This includes the first examples of the direct C-5 arylation of an amino acid dipeptide-derived oxazole. Moderate to excellent antibacterial activity was observed for all new compounds across Gram positive isolates with MICs ranging from 1-16 μg mL-1. Results for Gram negative E. coli and A. baumannii were more variable, but MICs as low as 4 μg mL-1 were returned for two examples. Significantly, the in vitro results with a fluoromethyl-oxazole derivative collectively represent the best obtained to date for a member of our binaphthyl peptide antimicrobials.

Item Type:	Journal Article
Publisher:	Royal Society of Chemistry
Copyright:	© The Royal Society of Chemistry.
URI:	http://researchrepository.murdoch.edu.au/id/eprint/33579

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