Synthesis and siderophore and antibacterial activity of N5-acetyl-N5-hydroxy-L-ornithine-derived siderophore-beta-lactam conjugates: iron-transport-mediated drug delivery.

Abstract excerpt

N5-Acetyl-N5-hydroxy-L-ornithyl-N5-acetyl-N5-hydroxy-L-ornithyl-N5-acety l- N5-hydroxy-L-ornithine, the functionally instrumental component of the albomycins and ferrichromes, has been incorporated as a "carrier" substructure into both carbacephalosporin and oxamazin type beta-lactam antibiotics. The previously synthesized protected version of this tripeptide (14) was coupled with various beta-lactam analogues...

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