Abstract

Polyene macrolide antibiotic pimaricin reacts with dialkyl(diaryl) phosphites and 4-bromobenzaldehyde to form 3′-N-α-[dialkoxy(diphenoxy)phosphinoyl]benzyl derivatives. Physicochemical and biological properties of the synthesized derivatives have been studied. According to the biological assay, the 3′-N-α-[dialkoxy(diphenoxy)phosphinoyl]benzyl derivatives are less toxic than the parent antibiotic and exhibit strong antifungal activity towards a wide range of Candida yeast-like fungi.

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