The present invention provides a novel class of macrocyclic compounds as well as complexes formed between a metal (e.g., lanthanide) ion and the compounds of the invention. Preferred complexes exhibit high stability as well as high quantum yields of lanthanide ion luminescence in aqueous media without the need for secondary activating agents. Preferred compounds incorporate hydroxy-isophthalamide moieties within their macrocyclic structure and are characterized by surprisingly low, non-specific binding to a variety of polypeptides such as antibodies and proteins as well as high kinetic stability. These characteristics distinguish them from known, open-structured ligands.
                            本发明提供了一类新型的大环化合物,以及由
金属(例如
镧系
金属)离子和本发明化合物形成的配合物。优选的配合物在无需二次激活剂的情况下,在
水介质中表现出高稳定性和高
镧系离子荧光量子产率。优选的化合物在其大环结构中包含羟基异苯酰胺基团,并以出人意料的低非特异性结合多种
多肽(如
抗体和蛋白质)以及高动力学稳定性为特征。这些特征使它们与已知的开放结构
配体有所区别。