Bifunctional Single Amino Acid Chelates for Labeling of Biomolecules with the {Tc(CO)<sub>3</sub>}<sup>+</sup> and {Re(CO)<sub>3</sub>}<sup>+</sup> Cores. Crystal and Molecular Structures of [ReBr(CO)<sub>3</sub>(H<sub>2</sub>NCH<sub>2</sub>C<sub>5</sub>H<sub>4</sub>N)], [Re(CO)<sub>3</sub>{(C<sub>5</sub>H<sub>4</sub>NCH<sub>2</sub>)<sub>2</sub>NH}]Br, [Re(CO)<sub>3</sub>{(C<sub>5</sub>H<sub>4</sub>NCH<sub>2</sub>)<sub>2</sub>NCH<sub>2</sub>CO<sub>2</sub>H}]Br, [Re(CO)<sub>3</sub>{X(Y)NCH<sub>2</sub>CO<sub>2</sub>CH<sub>2</sub>CH<sub>3</sub>}]Br (X = Y = 2-pyridylmethyl; X = 2-pyridylmethyl, Y = 2-(1-methylimidazolyl)methyl; X = Y = 2-(1-methylimidazolyl)methyl), [ReBr(CO)<sub>3</sub>{(C<sub>5</sub>H<sub>4</sub>NCH<sub>2</sub>)NH(CH<sub>2</sub>C<sub>4</sub>H<sub>3</sub>S)}], and [Re(CO)<sub>3</sub>{(C<sub>5</sub>H<sub>4</sub>NCH<sub>2</sub>)N(CH<sub>2</sub>C<sub>4</sub>H<sub>3</sub>S)(CH<sub>2</sub>CO<sub>2</sub>)}]
作者:Sangeeta Ray Banerjee、Murali K. Levadala、Neva Lazarova、Lihui Wei、John F. Valliant、Karin A. Stephenson、John W. Babich、Kevin P. Maresca、Jon Zubieta
DOI:10.1021/ic020476e
日期:2002.12.1
[NEt(4)](2)[ReBr(3)(CO)(3)] have been investigated. The model compounds [Re(CO)(3)Br[(2-pyridylmethyl)NH(2)]] (1) and [Re(CO)(3)[(2-pyridylmethyl)(2)NH]]Br (2) were also prepared and structurally characterized. With ligands possessing two pyridyl appendages, (2-pyridylmethyl)(2)NX (X = -CH(2)CO(2)H, -CH(2)CO(2)Et, -CH(2)CH(2)CO(2)H, -CH(2)CH(2)CO(2)Et, -CH(2)CH(2)CH(2)CH(2)CH(NHCO(2)(t)Bu)CO(2)H), complexes
已经研究了一系列源自单个氨基酸或氨基酸类似物的潜在三齿配体与[NEt(4)](2)[ReBr(3)(CO)(3)]的反应。模型化合物[Re(CO)(3)Br [(2-吡啶基甲基)NH(2)]](1)和[Re(CO)(3)[(2-吡啶基甲基)(2)NH]] Br( 2)也已制备并进行了结构表征。具有两个吡啶基附件的配体,(2-吡啶基甲基)(2)NX(X = -CH(2)CO(2)H,-CH(2)CO(2)Et,-CH(2)CH(2) CO(2)H,-CH(2)CH(2)CO(2)Et,-CH(2)CH(2)CH(2)CH(2)CH(NHCO(2)(t)Bu)CO (2)H),分离出[Re(CO)(3)(配体)] Br(3-6)类型的配合物。全部都在阳离子分子单元中具有fac- [Re(CO)(3)N(3)]配位几何。同样,具有咪唑基臂(2-吡啶基甲基)[2-(1-甲基咪唑基)甲基] NCH(