Preparation and bioevaluation of a novel 99mTc-labelled propylene amine oxime (PnAO) containing two 4-methyl-2-nitroimidazole groups as a promising tumor hypoxia imaging agent
作者:Shuo Li、Taiwei Chu
DOI:10.1016/j.bmcl.2024.129773
日期:2024.7
treatment is essential. Three propylene amine oxime (PnAO) derivatives with different substituents attached to 2-nitroimidazole were synthesized in the work, they are 3,3,9,9-tetramethyl-1,11-bis(4-bromo-2-nitro-1-imidazol-1-yl)-4,8-diazaundecane-2,10-dione dioxime (Br2P2), 3,3,9,9-tetramethyl-1,11-bis(4-methyl-2-nitro-1-imidazol-1-yl)-4,8-diazaundecane-2,10-dione dioxime (Me2P2) and 3,3,9,9-tetramethyl-1
缺氧是实体瘤中的常见现象,它的存在会抑制肿瘤化疗和放疗的疗效。肿瘤治疗前准确测量缺氧至关重要。本工作合成了3种2-硝基咪唑上带有不同取代基的丙烯胺肟(PnAO)衍生物,它们是3,3,9,9-四甲基-1,11-双(4-溴-2-硝基-1-)咪唑-1-基)-4,8-二氮杂十一烷-2,10-二酮二肟 (Br2P2), 3,3,9,9-四甲基-1,11-双(4-甲基-2-硝基-1-咪唑) -1-基)-4,8-二氮杂十一烷-2,10-二酮二肟 (Me2P2) 和 3,3,9,9-四甲基-1,11-双(4,5-二甲基-2-硝基-1-咪唑-1-基)-4,8-二氮杂十一烷-2,10-二酮二肟(2Me2P2)。将这三种化合物用Tc放射性标记,得到稳定性良好的三种配合物([Tc]Tc-Br2P2、[Tc]Tc-Me2P2和[Tc]Tc-2Me2P2)。与之前报道的[Tc]Tc-2P2、[Tc]Tc-