申请人:Amersham International plc
公开号:US05993774A1
公开(公告)日:1999-11-30
Novel metal chelating compounds, and radiometal, e.g., technetium-99m complexes thereof. The compounds can be used to radiolabel small biologically active species with minimal effect on their biodistribution and activity. The compounds have formula (a) or (b): ##STR1## where Z is (CR.sub.2).sub.n or (CR).sub.n, n is 2 or 3, X is a ligand comprising S, N or O, each R is H or C1-C20 substituted or unsubstituted hydrocarbon group, provided that 1-3 CR.sub.2 groups represent a CO (amide) moiety, and provided that 1-3 R may each comprise a targeting group and/or a protein reactive functionality.
新型金属螯合化合物,以及放射性金属,例如锝-99m的配合物。这些化合物可用于用放射性标记小的生物活性物种,对它们的生物分布和活性影响最小。这些化合物的化学式为(a)或(b):##STR1## 其中Z为(CR.sub.2).sub.n或(CR).sub.n,n为2或3,X为包含S、N或O的配体,每个R为H或C1-C20取代或未取代的碳氢基团,前提是1-3个CR.sub.2基团代表一个CO(酰胺)基团,并且1-3个R中的每个可以包含一个靶向基团和/或蛋白质反应性官能团。