Synthesis and biological activity of some derivatives of rifamycin P - PubMed (original) (raw)

Comparative Study

doi: 10.1021/jm00167a029.

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Comparative Study

Synthesis and biological activity of some derivatives of rifamycin P

B Cavalleri et al. J Med Chem. 1990 May.

Abstract

A series of derivatives of rifamycin P, an antibiotic produced by fermentation of a mutant strain of Nocardia mediterranea or by chemical modification of rifamycin S, have been prepared. The structures of these compounds were determined by 1H NMR, IR, UV, and LC/MS. Their in vitro and in vivo antibacterial activities in comparison with rifampicin and two other rifamycins under investigation were evaluated. The derivatives were more active than rifamycin P against Mycobacterium avium complex and other slowly and rapidly growing nontuberculous mycobacteria which frequently cause systemic infection in patients with AIDS. 2'-(Diethylamino)rifamycin P (P/DEA) appears suitable for further investigation.

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