Histidine derivatives as tridentate chelators for the fac-[MI(CO)3] (Re, 99mTc, 188Re) core: Synthesis, structural characterization, radiochemistry and stability
作者:Dionysia Papagiannopoulou、Charalambos Tsoukalas、George Makris、Catherine P. Raptopoulou、Vassilis Psycharis、Leondios Leondiadis、Ewa Gniazdowska、Przemyslaw Koźmiński、Leon Fuks、Maria Pelecanou、Ioannis Pirmettis、Minas S. Papadopoulos
DOI:10.1016/j.ica.2011.08.062
日期:2011.11
The development of new rhenium(I)- and technetium(I)–tricarbonyl complexes can lead to potentially useful radiopharmaceuticals. In this work, the synthesis of the neutral rhenium complex fac-[Re(NSO)(CO)3], Re-1, where NSO is the tridentate chelating agent 3-(1H-imidazol-4-yl)-2-(p-methoxy-benzylthio)propionic acid 1 was effected via reaction with (NEt4)2[ReBr3(CO)3] in the presence of NaHCO3. Complex
新的((I)和tech(I)-三羰基配合物的开发可以导致潜在有用的放射性药物。在这项工作中,中性rh配合物fac- [Re(NSO)(CO)3 ],Re-1的合成,其中NSO是三齿螯合剂3-(1H-咪唑-4-基)-2-(在NaHCO 3的存在下,通过与(NEt 4)2 [ReBr 3(CO)3 ]反应实现对-甲氧基-苄硫基)丙酸1。复杂的重新1从甲醇/水中结晶出来,用IR,确立了其结构1 H和13C NMR光谱学,ESI-MS分析和X射线晶体学。当反应在不存在碱的情况下进行时,HPLC分析表明存在第二种产物(收率7%),该产物通过NMR和ESI分析指定为复杂的fac- [Re(NS)(CO)3 Br] Re -2。在示踪剂水平上,合成了类似的复合物fac- [ 99m Tc(NSO)(CO)3 ],99m Tc-1和fac- [ 188 Re(NSO)(CO)3 ],188 Re-1,测定