Patent Document ID: 20030225087
Application ID: 10456024
Patent Flag: 0

Claim One:
1. N-alkyl-N-phenylhydroxylamine derivatives containing metal chelating groups with the following formula (I), and pharmaceutically acceptable salts thereof: 6 wherein, R 1 denotes branched alkyl, aralkyl, aryl or substituted aryl; R 2 denotes hydrogen, or COR 6 (where, R 6 is alkyl or aryl); and, R 3 denotes metal chelating groups such as CO 2 H, CONH 2, CONR 4 R 5 (where, R 4 denotes hydrogen, alkyl or aryl; and, R 5 denotes heterocyclic unsaturated or saturated radical having 1 to 4 heteroatoms of elements nitrogen, oxygen and/or sulfur from the group comprising furanyl, oxazolyl, isooxazolyl, thiophenyl, thiazolyl, isothiazolyl, pyrrolyl, imidazolyl, pyrazolyl, oxadiazolyl, thiadiazoyl, pyridyl, pyrimidinyl, pyrazinyl, pyridazinyl, triazinyl, triazolyl, tetrazolyl, it being possible for the heterocyclic radical to be substituted once or twice, identically or differently, by halogen, C 1-2 -alkyl, C 1-4 -alkoxy, C 1-4 -alkylthio, hydroxy, mercapto, trifluoromethyl, nitro, phenyl, nitrile, carboxy or C 1-4 -alkoxycarbonyl).