The present invention includes compounds of the formula ##STR1## wherein: X is hydrogen or halide; R.sup.2 is hydrogen, acyl, or a hydroxy protecting group; R.sup.6 is hydrogen, hydroxyl, or --OR.sup.a wherein R.sup.a is a substituted or unsubstituted moiety selected from the group consisting of C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl, aryl, heterocyclo, aryl(C.sub.1 -C.sub.10)alkyl, aryl(C.sub.2 -C.sub.10)alkenyl, aryl(C.sub.2 -C.sub.10)alkynyl, heterocyclo(C.sub.1 -C.sub.10)alkyl, heterocyclo(C.sub.2 -C.sub.10)alkenyl, and heterocyclo(C.sub.2 -C.sub.10)alkynyl; R.sup.13 is hydrogen or a substituted or unsubstituted moiety wherein the moiety is selected from the group consisting of methyl; C.sub.3 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl, aryl, heterocyclo, aryl(C.sub.1 -C.sub.10)alkyl, aryl(C.sub.2 -C.sub.10)alkenyl, aryl(C.sub.2 -C.sub.10)alkynyl, heterocyclo(C.sub.1 -C.sub.10)alkyl, heterocyclo(C.sub.2 -C.sub.10)alkenyl, and heterocyclo(C.sub.2 -C.sub.10)alkynyl; and, R is hydrogen or a substituted or unsubstituted moiety wherein the moiety is selected from the group consisting of C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl, aryl, heterocyclo, aryl(C.sub.1 -C.sub.10)alkyl, aryl(C.sub.2 -C.sub.10)alkenyl, aryl(C.sub.2 -C.sub.10)alkynyl, heterocyclo(C.sub.1 -C.sub.10)alkyl, heterocyclo(C.sub.2 -C.sub.10)alkenyl, and heterocyclo(C.sub.2 -C.sub.10)alkynyl; and the pharmaceutically acceptable salts, esters and pro-drug forms thereof. These compounds possess anti-infective activity and are useful for the treatment of bacterial and protozoal infections.

La presente invenzione include i residui del ## del ## STR1 di formula in cui: X è idrogeno o alogenuro; R.sup.2 è idrogeno, acilico, o un gruppo di protezione idrossilato; R.sup.6 è idrogeno, idrossile, o -- OR.sup.a in cui R.sup.a è una parte sostituita o non sostituita scelta dal gruppo che consiste di C.sub.1 - C.sub.10 alchile, C.sub.2 - C.sub.10 alchenile, C.sub.2 - C.sub.10 alkynyl, arile, heterocyclo, aryl(C.sub.1 - C.sub.10)alkyl, aryl(C.sub.2 - C.sub.10)alkenyl, aryl(C.sub.2 - C.sub.10)alkynyl, heterocyclo(C.sub.1 - C.sub.10)alkyl, heterocyclo(C.sub.2 - C.sub.10)alkenyl e heterocyclo(C.sub.2 - C.sub.10)alkynyl; R.sup.13 è idrogeno o una parte sostituita o non sostituita in cui la parte è scelta dal gruppo che consiste di metile; C.sub.3 - Alchile C.sub.10, C.sub.2 - C.sub.10 alchenile, C.sub.2 - alkynyl C.sub.10, arile, heterocyclo, aryl(C.sub.1 - C.sub.10)alkyl, aryl(C.sub.2 - C.sub.10)alkenyl, aryl(C.sub.2 - C.sub.10)alkynyl, heterocyclo(C.sub.1 - C.sub.10)alkyl, heterocyclo(C.sub.2 - C.sub.10)alkenyl e heterocyclo(C.sub.2 - C.sub.10)alkynyl; e, la R è idrogeno o una parte sostituita o non sostituita in cui la parte è scelta dal gruppo che consiste di C.sub.1 - C.sub.10 l'alchile, C.sub.2 - C.sub.10 alchenile, C.sub.2 - C.sub.10 alkynyl, arile, heterocyclo, aryl(C.sub.1 - C.sub.10)alkyl, aryl(C.sub.2 - C.sub.10)alkenyl, aryl(C.sub.2 - C.sub.10)alkynyl, heterocyclo(C.sub.1 - C.sub.10)alkyl, heterocyclo(C.sub.2 - C.sub.10)alkenyl e heterocyclo(C.sub.2 - C.sub.10)alkynyl; ed i sali, gli esteri e le forme farmaceuticamente accettabili del pro-drug di ciò. Questi residui possiedono l'attività antinfettiva e sono utili per il trattamento delle infezioni batteriche e protozoiche.

 
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