Patent ID: 6221905
Filing Date: 2001-04-24
Classification: A61P,C07F

Abstract:
A salt of an anionic complex of Ru(III) with an ammonium cation of formula (I): ##STR5##where R.sub.1, R.sub.2 and R.sub.3, equal or different from each other, are selected from the group consisting of H, C.sub.1 -.sub.6 alkyl, linear or branched, saturated or unsaturated, C.sub.3 -C.sub.7 cycloalkyl, phenyl and aryl;or NR.sub.1 R.sub.2 R.sub.3 is a 5-7 membered nitrogen-containing heterocycle, saturated or unsaturated, optionally containing one or more O, S and /or N atoms, said nitrogen atom being optionally substituted with a C.sub.1 -C.sub.4 alkyl, aryl or benzyl residue; said nitrogen-containing heterocycle being optionally condensed with a benzo group and/or substituted with C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxyl, C.sub.1 -C.sub.4 alkylthio, aryl or benzyl groups;where R.sub.4 and R.sub.5, equal or different from each other, are selected from the group consisting of H, C.sub.1 -C.sub.6 alkyl, C.sub.3 -C.sub.7 cycloalkyl, phenyl and aryl or R.sub.4 and R.sub.5 form, together with the S atom, a 4-7 membered heterocycle.