Synthesis and Structure of Novel Sugar-Substituted Bipyridine Complexes of Rhenium and 99m-Technetium
作者:Michael Gottschaldt、Daniel Koth、Dirk Müller、Ingo Klette、Sven Rau、Helmar Görls、Bernhard Schäfer、Richard P. Baum、Shigenobu Yano
DOI:10.1002/chem.200700296
日期:2007.12.17
spectroscopy. These complexes exhibit excellent solubility and stability in organic solvents or water, depending on the residues of the sugar. One complex, namely tricarbonyl-4,4'-bis[(2,3,4,6-tetra-O-acetyl-beta-D-glycopyranosyl)thiomethyl]-2, 2'-bipyridinerheniumtricarbonylo chloride, has been characterised by X-ray crystallography. A non-symmetric structure of the complexes could be assigned. Radiolabelling
从4,4'-二溴甲基-2,2'-联吡啶与2,3,4,6-四-O-乙酰基-β-D-吡喃葡萄糖基硫醇,2,3,4,6的反应中获得了新型配体-四-O-乙酰基-β-D-吡喃半乳糖基硫醇或2,3,4,6-四-O-乙酰基-α-D-硫代乙酰基甘露吡喃糖苷,其中糖残基硫代糖苷化地连接到4,4'-中的联吡啶位置。乙酰基的裂解提供具有游离羟基的亲水对称配体。新的糖共轭配体(L)与[Re(CO)(5)Cl]的反应生成通式为[Re(L)(CO)(3)Cl]的荧光配合物,通过质谱,元素分析和(1)H和(13)C NMR,IR,UV / Vis和荧光光谱。这些配合物在有机溶剂或水中显示出极好的溶解性和稳定性,这取决于糖的残基。一种配合物,即三羰基-4,4'-双[(2,3,4,6-四-O-乙酰基-β-D-甘露糖基)硫代甲基] -2,2'-联吡啶er三羰基氯,已用X表征。射线晶体学。可以指定复合物的非对称结构。用[(99