A new [2 + 1] mixed ligand concept based on [<sup>99(m)</sup>Tc(OH<sub>2</sub>)<sub>3</sub>(CO)<sub>3</sub>]<sup>+</sup>: a basic study
作者:Stefan Mundwiler、Monika Kündig、Kirstin Ortner、Roger Alberto
DOI:10.1039/b400220b
日期:——
as L1 and N-((6-carboxypyridine-3-yl)methyl)glycylphenylalanine as L2. The corresponding second ligand can be used to influence the physico-chemical properties of the conjugate. The crystal structures of [99Tc(OH2)(imc)(CO)3], [Re(OH2)(2,4-dipic)(CO)3], [Re(bic)(2,4-dipic)(CO)3] and [Re(im)(2,5-dipic)(CO)3] are reported.
混合的 配体 面式通式[M(L的三羰基复合物1)(L 2)(CO)3 ](M = RE,99(M)锝,L 1 =咪唑, 异氰酸苄酯,L 2 =1 H-咪唑-4-羧酸, 吡啶-2,4-二羧酸, 吡啶-2,5-二羧酸)是由前体[M(OH 2)3(CO)3 ] +制备的。通过首先连接二齿,可以分两步获得高收率和高纯度的配合物配体其次是添加单齿。也可以在反应堆中制备99m Tc化合物示踪剂一锅法中同时存在L 1和L 2的液位。这种[2 +1]方法允许贴标含有单齿或双齿供体位点的生物活性分子。此处给出的实例是N-(叔丁氧基羰基)甘氨酰基-N-(3-(咪唑-1-基)丙基)苯丙氨酰胺,5-((3-(咪唑-1-基)丙基)氨基甲基)-2'脱氧尿苷和4-(5- isonitrilpentyl)-1-(2-甲氧基苯基) -哌嗪为L 1和ñ - ((6-羧基吡啶-3-基)甲基)glycylphenylalanine为L