LU Gongxu, ZHANG Yadong, WANG Xuebin. An investigation of 99mTc-labeled"3+ 1" mixed ligand complexes as potential blood-pool imaging agents[J]. Nuclear techniques, 2000, (11): 786-791.
LU Gongxu, ZHANG Yadong, WANG Xuebin. An investigation of 99mTc-labeled"3+ 1" mixed ligand complexes as potential blood-pool imaging agents[J]. Nuclear techniques, 2000, (11): 786-791.DOI:
N-diethylethylene diamine (MDEDA) containing the SNN donor was synthesized and characterized by IR and 1H NMR. The tridentate and various monodentate thiols using 99mTc(V)-gluconate as precusor
chelates to the TcO3+ core. Thus four "3 + 1
" mixed ligand complexes of general formula [TcO(Et2NCH2CH2 NCHC(CH3)2S] [SR] were prepared. The labeling efficiency were all higher than 90%. The effects of pH value
temperature and reaction time were studied. The biodistribution results in mice and rabbits indicated that the uptake and retention of these complexes in blood was much higher and longer than those in other organs. The retention of complex 5c can be retend in blood was longer than the retention of others. Perhaps it can satisfy the requirement of blood-pool imaging agent.