Rifamycin analogs and uses thereof

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C514S229500, C514S252100, C540S458000

Reexamination Certificate

active

07342011

ABSTRACT:
The present invention features rifamycin analogs that can be used as therapeutics for treating or preventing a variety of microbial infections. In one form, the analogs are acetylated at the 25-position, as is rifamycin. In another form, the analogs are deacetylated at the 25-position. In yet other forms, benzoxazinorifamycin, benzthiazinorifamycin, and benzdiazinorifamycin analogs are derivatized at various positions of the benzene ring, including 3′-hydroxy analogs, 4′- and/or 6′ halo and/or alkoxy analogs, and various 5′ substituents that incorporate a cyclic amine moiety.

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