申请人:Dibra S.p.A.
公开号:US06342597B1
公开(公告)日:2002-01-29
Compounds of formula (I)
in which R is in which R is hydrogen, a straight or branched or cyclic C1-C6 alkyl group, unsubstituted or substituted by 1 to 10 oxygen atoms, or a C1-C20 alkyl group, optionally interrupted by a phenylene, in turn substituted by a straight or branched C1-C6 alkyl group, unsubstituted or substituted by 1 to 3 C1-C7 alkyl groups; the phenylene group being unsubstituted or substituted by alkoxy, carboxy, sulfamoyl, hydroxyalkyl, amino groups; as well as its complexes with a bi- or trivalent metal ion having an atomic number from 20 to 31, 39, 42, 43, 44, 49, or from 57 to 83, as well as its salts with anions of physiologically acceptable organic acids chelated complexes of these compounds are used as contrast agents for nuclear magnetic resonance imaging.
公式(I)中的化合物,其中R是氢,直链或支链或环状的C1-C6烷基基团,未取代或取代1至10个氧原子,或C1-C20烷基基团,可由苯基间断,而后由直链或支链C1-C6烷基基团取代或未取代,或取代1至3个C1-C7烷基基团;苯基团未取代或取代为烷氧基,羧基,磺胺酰,羟基烷基,氨基团;以及其与具有20至31,39,42,43,44,49的原子序数的双价或三价金属离子的络合物,或具有57至83的原子序数的金属离子的络合物,以及其与生理上可接受的有机酸阴离子的盐,这些化合物的螯合络合物用作核磁共振成像的造影剂。