Deconstructing Vancomycin

Abstract
The glycopeptide antibiotic vancomycin is a drug of last resort for treating Gram-positive bacterial infections that do not respond to other antibiotics. But there have been recent reports of multi�drug-resistant bacteria that are even resistant to vancomycin. [ Ge et al .][1] now report the synthesis of vancomycin analogs that are more powerful than the parent compound in killing both vancomycin-sensitive and vancomycin-resistant Gram-positive bacteria. In a Perspective, Walsh explains how the new analogs kill bacteria by blocking a different step in the pathway of bacterial cell wall synthesis. These findings suggest that simple sugar fragments may form a new class of antibiotics. [][2] [1]: http://www.sciencemag.org/cgi/content/short/284/5413/507 [2]: http://
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