Bifunctional aromatic compounds which are capable of linking metal ions to biologically useful molecules. The bifunctional compounds are characterized as having a hydrazine or hydrazide group and a protein reactive group. The hydrazine or hydrazide group may be protected as a lower alkyl hydrazone. Conjugates of the bifunctional compounds with macromolecules are also described and labelled macromolecules comprised of the conjugates and metal ions are provided. Additionally, a method is provided for forming a labelled macromolecule by reacting a conjugate with a metal species. The compounds and method of this invention are particularly useful in the fields of biology and medicine for imaging and/or therapy.
具有双官能团的芳香化合物,能够将
金属离子与
生物有用分子连接起来。这些双官能化合物的特点是具有一个
肼或
肼酸基团和一个蛋白质反应基团。
肼或
肼酸基团可以作为较低烷基
肼酮保护。本发明还描述了双官能化合物与大分子的结合物,并提供了由这些结合物和
金属离子组成的标记大分子。此外,本发明还提供了一种通过将结合物与
金属物种反应形成标记大分子的方法。该发明的化合物和方法在
生物学和医学领域中特别有用于成像和/或治疗。