申请人:General Electric Company
公开号:US09155804B2
公开(公告)日:2015-10-13
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 R1, R2, R3, R7, R8, R′1, R′2, R′3, R7′ and R8′ are selected form hydrogen, a protected C1-C3 hydroxyalkyl group, or a C1-C3 alkyl group; R4, R′4 are selected from a hydrogen, a hydroxyl, a protected hydroxyl group, a protected C1-C3 hydroxyalkyl group, a C1-C3 alkyl group; n is an integer between 0 and 4; R5, R′5 are selected from a hydrogen, a protecting group comprising C1-C30 aliphatic radicals, C3-C30 cycloaliphatic radicals, C2-C30 aromatic radicals, m is an integer between 1 and 10; at least one of R7 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一种诊断成像方法。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、受保护的羟基基团、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环脂基、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中的至少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。