申请人:GENERAL ELECTRIC COMPANY
公开号:US20140086846A1
公开(公告)日:2014-03-27
A contrast agent composition and a method of diagnostic imaging are provided. The composition comprises a pharmaceutically acceptable carrier and a metal-complex comprising a ligand having structure (XXX):
wherein R
1
, R
2
, R
3
, R
7
, R
8
, R′
1
, R′
2
, R′
3
, R
7
′ and R
8
′ are selected form hydrogen, a protected C
1
-C
3
hydroxyalkyl group, or a C
1
-C
3
alkyl group; R
4
, R′
4
are selected from a hydrogen, a hydroxyl, a protected hydroxyl group, a protected C
1
-C
3
hydroxyalkyl group, a C
1
-C
3
alkyl group; n is an integer between 0 and 4; R
5
, R′
5
are selected from a hydrogen, a protecting group comprising C
1
-C
30
aliphatic radicals, C
3
-C
30
cycloaliphatic radicals, C
2
-C
30
aromatic radicals, m is an integer between 1 and 10; at least one of R
7
and R′
7
is acidic groups or protected acidic groups; Y comprises a protein or peptide moiety, a particle, a micelle, a liposome, an organic molecule, oligomer, polymer or a hydrophilic moiety.
提供了一种对比剂组合物和诊断成像方法。该组合物包括一种药用载体和一种金属配合物,其包括具有结构(XXX)的配体:其中R1、R2、R3、R7、R8、R′1、R′2、R′3、R7′和R8′从氢、受保护的C1-C3羟基烷基或C1-C3烷基中选择;R4、R′4从氢、羟基、受保护的羟基烷基、受保护的C1-C3羟基烷基或C1-C3烷基中选择;n是0到4之间的整数;R5、R′5从氢、包含C1-C30脂肪基、C3-C30环烷基、C2-C30芳香基的保护基中选择;m是1到10之间的整数;R7和R′7中至少有一个是酸性基团或受保护的酸性基团;Y包括蛋白质或肽基团、粒子、胶束、脂质体、有机分子、寡聚体、聚合物或亲水基团。