EP-647 is a serum albumin-targeted magnetic resonance imaging contrast agent comprising a GdDTPA (DTPA, diethylenetriaminepentaacetate) chelate for magnetic resonance signal generation linked via a phosphodiester to a substituted biphenyl for albumin targeting. Albumin binding and relaxivity are higher than the benchmark magnetic resonance angiographic agent MS-325. EP-647 binds primarily to a unique site on serum albumin that is different from the MS-325 site and the binding sites of other drugs.
EP-647 是一种血清白蛋白靶向磁共振成像造影剂,由用于产生磁共振信号的 GdDTPA(DTPA,二乙烯三胺五乙酸酯)螯合物通过磷酸二酯与用于白蛋白靶向的取代联苯连接而成。白蛋白结合率和弛豫度均高于基准磁共振血管造影剂 MS-325。EP-647 主要与血清白蛋白上的一个独特位点结合,该位点不同于 MS-325 位点和其他药物的结合位点。