In the current research, we conducted a comparative study of the Ac3+ complex with H4DOTA and H4BATA. The stability constants of the [AcBATA]− and [AcDOTA]− complexes were studied directly by extraction methods. We discovered that the thermodynamic properties of the [AcBATA]− complex are superior to those of [AcDOTA]−. Moreover, the fast kinetics of H4BATA complexation with Ac3+ during the radiolabeling
在当前的研究中,我们对Ac 3+配合物与H 4 DOTA 和H 4 BATA 进行了比较研究。[AcBATA] -和 [AcDOTA] -复合物的稳定性常数直接通过萃取方法研究。我们发现[AcBATA] -复合物的热力学性质优于[AcDOTA] -。此外,在室温下已经观察到放射性标记实验期间H 4 BATA 与Ac 3+络合的快速动力学。Ac 3+被置于[AcBATA] -复合物的大环空腔内,防止阳离子释放。根据DFT研究,发现了两种可能的构象,其中两个悬臂与氮杂冠腔一侧的
金属阳离子配位,另一侧有两个悬臂,或者一侧有三个悬臂,另一侧有一个。最后,[AcBATA] -的体外和体内高惰性被发现,使得 H 4 BATA
配体非常适合作为
锕基放射性药物的成分。