'Beta-lactams' as beta-lactamase inhibitors

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
M Cole

Abstract

The application of inhibitors to block the beta-lactamase destruction of penicillins and cephalosporins by resistant bacteria is a potentially useful way of improving the efficacy of established compounds. Certain semi-synthetic penicillins and cephalosporins have been found to be competitive inhibitors of selected beta-lactamases but an examination of streptomycete culture fluids has revealed two new types of beta-lactam compound: clavulanic acid, which is a progressive inactivator of a wide range of beta-lactamases, and the olivanic acids, which are both broad-spectrum antibiotics and potent beta-lactamase inhibitors. Penicillanic acid sulphone and 6-beta-bromopenicillanic acid have been shown to be significant inhibitors of beta-lactamase. The chemotherapeutic application of these compounds is discussed.

Citations

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