申请人:Mallinckrodt Medical, Inc.
公开号:US05656253A1
公开(公告)日:1997-08-12
The present invention relates particularly to novel pyridine based nitrogen-sulfur ligands that are suitable for complexing with a radionuclide, and are useful as general imaging agents for diagnostic purposes, novel aminothiol ligands that are suitable for complexing with a radionuclide, and are useful as general imaging agents for diagnostic purposes, and amide-thiolate ligands having improved metal chelate formation kinetics. The amide-thiolate ligands include an amine which converts to a vinylogous amide upon complexation, thereby providing rapid complexation and thermodynamic stability. The ligands may be used for post formed labeling of biological substances for use in the fields of diagnosis and therapy.
本发明特别涉及一种新型的以吡啶为基础的氮硫配体,适用于与放射性核素配合,并可作为诊断用的通用成像剂。还包括一种新型的氨硫配体,适用于与放射性核素配合,并可作为诊断用的通用成像剂,以及具有改善金属螯合形成动力学的酰胺硫酸盐配体。酰胺硫酸盐配体包括一种在配位作用下转化为缩聚酰胺的胺,从而提供快速的配合和热力学稳定性。这些配体可用于生物物质的后标记,用于诊断和治疗领域。