Models for B<sub>12</sub>-Conjugated Radiopharmaceuticals. Cobaloxime Binding to New <i>fac</i>-[Re(CO)<sub>3</sub>(Me<sub>2</sub>Bipyridine)(amidine)]BF<sub>4</sub> Complexes Having an Exposed Pyridyl Nitrogen
作者:Nerissa A. Lewis、Patricia A. Marzilli、Frank R. Fronczek、Luigi G. Marzilli
DOI:10.1021/ic5016675
日期:2014.10.20
pyridine) complexes increased with increasing basicity of the 4-Xpy derivative, a finding attributed to the influence of the magnetic anisotropy of the cobalt center on the shifts of the 1H NMR signals of the pyridyl protons closest to Co. Our method of employing a coordinate bond for conjugating the fac-[ReI(CO)3] core to a vitamin B12 model could be extended to natural B12 derivatives. Because B12 compounds
新的单核am络合物fac- [Re(CO)3(Me 2 bipy)(HNC(CH 3)(pyppz))] BF 4 [(4,4'-Me 2 bipy(1),5,5'-通过处理母体fac- [Re I(CO)3(Me 2 bipy ),合成了Me 2 bipy(2)和6,6'-Me 2 bipy(3)](bipy = 2,2'-bipyridine))(CH 3 CN)] BF 4与C 2的络合物-对称胺1-(4-吡啶基)哌嗪(pyppzH)。轴向am配体具有暴露的高碱性吡啶基氮。复合物的反应1 - 3用B 12模型,(PY)的Co(DH)2 Cl(上DH =二甲基乙二肟的单价阴离子),在CH 2氯2,得到相应的双核配合物,即,FAC - [的Re(CO)3(Me 2 bipy)(μ-(HNC(CH 3)(pyppz)))Co(DH)2 Cl] BF 4 [(4,4'-Me 2 bipy(4),5