Patent ID: RE40861

Claim:
A compound of formula (I) wherein: X + is N + (R 1 ,R 2 ,R 3 ), wherein R 1 ,R 2 ,R 3 , being the same or different, are selected in the group consisting of hydrogen, a C 1 -C 9 straight or branched alkyl group, —CH═NH(NH 2 ), —NH 2 , and —OH; or one or more R 1 , R 2 and R 3 , together with the nitrogen atom which they are linked to, form a saturated or unsaturated, monocyclic or bicyclic heterocyclic system; with the proviso that at least one of the R 1 , R 2 and R 3 is different from hydrogen; Z is selected from —OR 4 , —OCOOR 4 , —OCONHR 4 , —OCSNHR 4 , —OCSOR 4 , —NHR 4 , —NHCOR 4 , —NHCSR 4 , —NHCOOR 4 , —NHCSOR 4 , —NHCONHR 4 , —NHCSNHR 4 , —NHSOR 4 , —NHSONHR 4 , —NHSO 2 R 4 , —NHSO 2 NHR 4 , and —SR 4 , wherein —R 4 is a C 1 -C 20 saturated or unsaturated, straight or branched alkyl group, optionally selected from the group consisting of ethyl, propyl, butyl, pentyl, hexyl, heptyl, octal, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl and eicosyl and their possible isomers or a linear or branched alkenyl group selected from the group consisting of ethylidene, vinyl, allyl, propenyl, butenyl, pentenyl, and their possible isomers, wherein said alkyl or alkenyl group is substituted with an A 1 group, wherein A 1 is selected from the group consisting of a halogen atom, or an aryl, heteroaryl, aryloxy or heteroaryloxy group, said aryl, heteroaryl, aryloxy or heteroaryloxy groups being optionally substituted with one or more C 1 -C 20 saturated or unsaturated, straight or branched alkyl or alkoxy group and/or halogen atom; Y − is selected from the group consisting of —COO − , PO 3 H − , —OPO 3 H − , tetrazolate-5-yl; with the proviso that when Z is —NHCOR 4 , Y is —COO − , then R 4 is C 20 alkyl; with the proviso that when Z is —NHSO 2 R 4 , Y − is —COO − , then R 4 is not tolyl; with the proviso that when Z is —NHR 4 , X + is trimethylammonium and Y − is —COO − , then R 4 is not C 1 -C 6 alkyl, their (R,S) racemic mixtures, their single R or S enantiomers, or their pharmaceutically acceptable salts.