申请人:Schering Aktiengesellschaft
公开号:US05820849A1
公开(公告)日:1998-10-13
Cascade polymer complexes that contain a) complexing ligands of general formula I A-X-\x9bY-(Z-<W-K.sub.W >.sub.Z).sub.y !.sub.x }.sub.a (I), in which A stands for a nitrogen-containing cascade nucleus of base multiplicity a, X and Y, independently of one another, stand for a direct bond or a cascade reproduction unit of reproduction multiplicity x or y, Z and W, independently of one another, stand for a cascade reproduction unit of reproduction multiplicity z or w, K stands for the radical of a complexing agent, a stands for numbers 2 to 12, x, y, z and w, independently of one another, stand for numbers 1 to 4, provided that at least two reproduction units are different and that for the product of the multiplicities, 16<a.multidot.x.multidot.y.multidot.z.multidot.w<64 holds true, b) at least 16 ions of an element of atomic numbers 20 to 29, 39, 42, 44 or 57-83, c) optionally cations of inorganic and/or organic bases, amino acids or amino acid amides as well as d) optionally acylated terminal amino groups are valuable compounds for diagnosis and therapy.
包含以下成分的级联聚合物复合物对诊断和治疗具有重要价值:a) 通式I A-X-\x9bY-(Z-<W-K.sub.W >.sub.Z).sub.y !.sub.x }.sub.a (I)中的络合配体,其中A代表碱基重复度为a的含氮级联核,X和Y分别代表直接键或重复度为x或y的级联复制单元,Z和W独立地代表重复度为z或w的级联复制单元,K代表络合剂的基团,a为2到12的数字,x、y、z和w独立地代表1到4的数字,前提是至少两个复制单元不同,并且对于重复度的乘积,16
Macrocyclic chelants, their chelates and uses thereof in the diagnostic
申请人:Dibra S.p.A.
公开号:US05622688A1
公开(公告)日:1997-04-22
This invention relates to novel compounds able to chelate paramagnetic bi- or trivalent metal ions, their chelates with said metal ions and their use as contrast agents in magnetic resonance imaging (MRI).
本发明涉及一种新型化合物,能够螯合顺磁性双价或三价金属离子,以及它们与该金属离子形成的螯合物,以及作为磁共振成像(MRI)对比剂使用的方法。
Cascade polymer complexes, process for their production and pharmaceutical agents containing said complexes
申请人:Schering AG
公开号:US20020187101A1
公开(公告)日:2002-12-12
Cascade polymer complexes with at least 16 ions of an element of atomic numbers 20 to 29, 39, 42, 44 or 57-83, useful NMR or x-ray lymphography imaging.
至少含有原子序数在20到29、39、42、44或57-83之间的元素离子16个的级联聚合物复合物,可用于核磁共振或X射线淋巴造影成像。
Paramagnetic metal icon chelates and use thereof as contrast agents in
申请人:Dibra S.p.A.
公开号:US05649537A1
公开(公告)日:1997-07-22
Novel paramagnetic metal ion chelates and their use as contrast agents in the diagnostic technique known as "magnetic resonance imaging" (M.R.I.) of the gastrointestinal tract and particularly of the liver, are described. The novel compounds result from the conjugation of a bile acid with a chelating agent and are capable of chelating the ions of bivalent and trivalent metals. The compounds have formula A-L-B in which A is the residue of a bile acid and derivatives of a bile acid, B is the residue of a chelating agent of a bivalent or trivalent metal ion having an atomic number of 20 to 31, 39, 42, 43, 44, 49, 57 to 83, L is a ligand between A and B.
本发明描述了新型顺磁性金属离子螯合物及其作为“磁共振成像”(M.R.I.)诊断技术中胃肠道和特别是肝脏的对比剂的使用。这些新型化合物是由胆酸与螯合剂结合而成,能够螯合二价和三价金属离子。该化合物的化学式为A-L-B,其中A是胆酸及其衍生物的残基,B是具有原子序数20到31、39、42、43、44、49、57到83的二价或三价金属离子的螯合剂残基,L是连接A和B之间的配体。
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