申请人:Storey Anthony Eamonn
公开号:US20080131368A1
公开(公告)日:2008-06-05
The present invention provides tetra-amine chelator conjugates with biological targeting moieties, linked via a linker group and technetium complexes thereof as radiopharmaceuticals. The linker group is such that the chelator is mono-functionalised at the bridgehead position and provides both flexibility and a lack or aryl groups, to minimise lipophilicity and steric hulk. Protected versions of the chelators are provided which permit conjugation with a wide range of targeting molecules without interfering reactions with the amine nitrogens of the tetra-amine chelator. Syntheses of the functionalised chelators are described, together with bifunctional chelate precursors. Radiopharmaceutical compositions comprising the technetium metal complexes of the invention are described, together with non-radioactive kits for the preparation of such radiopharmaceuticals.
本发明提供了四胺螯合物共轭体,其具有生物靶向基团,通过连接基团和银的技术复合物作为放射性药物。连接基团使得螯合物在桥头位置上单功能化,并提供了灵活性和缺乏芳基团,以最小化亲脂性和立体障碍。本发明提供了保护型螯合物,允许与广泛的靶向分子结合,而不会干扰四胺螯合物的胺氮原子的反应。本发明还描述了功能化螯合物的合成,以及双功能螯合前体。本发明还描述了包括本发明技术复合物的放射性药物组合物,以及用于制备这种放射性药物的非放射性试剂盒。