New Coordination Modes of
<scp>L</scp>
‐Ascorbic Acid and Dehydro‐
<scp>L</scp>
‐ascorbic Acid as Dianionic Chelating Ligand for Platinum
作者:Paola Bergamini、Elena Marchesi、Valerio Bertolasi、Marco Fogagnolo、Luca Scarpantonio、Stefano Manfredini、Silvia Vertuani、Alessandro Canella
DOI:10.1002/ejic.200700808
日期:2008.2
ntane) as a neutral ligand. A new coordination mode of ascorbic acid (O2 and O3 protected) as an O5,O6-diolate chelating ligand has been characterised in solution by NMR spectroscopy and in the solid state by X-ray crystallography. The first example of a platinum complex that contains dehydroascorbic acid, 7, has also been prepared and its X-ray crystal structure has been determined. The antiproliferative
L-抗坏血酸作为阴离子双齿配体的多种配位模式已被用于制备铂 (II) 配合物 1-7,其中包含磷烷或 R,R-dach (1R,2R-二氨基环己烷) 作为中性配体,其中 O2 、O3、O5、O6 和 C2 作为阴离子供体官能团。提出了已知 O2,O3 配合物的替代合成路线,并且通过引入 PTA(1,3,5-三氮杂-7-磷金刚烷)作为中性配体,提高了它们在水中的溶解度。抗坏血酸(O2 和 O3 保护)作为 O5,O6-二醇螯合配体的新配位模式已通过 NMR 光谱在溶液中和在固态中通过 X 射线晶体学表征。含脱氢抗坏血酸 7 的铂络合物的第一个例子也已制备,并已确定其 X 射线晶体结构。