[EN] NOVEL MANGANESE COMPRISING NANOSTRUCTURES<br/>[FR] NOUVELLES NANOSTRUCTURES COMPORTANT DU MANGANÈSE
申请人:SPAGO IMAGING AB
公开号:WO2013041623A1
公开(公告)日:2013-03-28
Disclosed herein are nanostructures comprising a polymeric framework comprising at least five geminal bisphosphonate groups, wherein the geminal bisphosphonate groups independently of each other are incorporated as - R3R4C(P=O(OR1)(OR2))2, wherein R1 and R2 are independently selected from the group consisting of a negative charge, H, alkyl and aryl, and wherein at least one of R3 and R4 is a group connected to the polymeric framework with the proviso that when only one of R3 and R4 is such a connected group, the other of R3 and R4 is either a group being able to connect to the polymeric framework, or the residue of such a group, or selected from the group consisting of H, OH, OR5 and R5, wherein R5 is a lower alkyl. The polymeric framework may comprise manganese ions. Disclosed are also methods for producing such manganese containing nanostructures, compositions comprising such manganese containing nanostructures and use of such manganese con¬ taining nanostructures, i.a. as MRI contrasting agents.
本文披露了包含至少五个伽那双膦酸酯基团的聚合物框架的纳米结构,其中这些伽那双膦酸酯基团独立地被结合为-R3R4C(P=O(OR1)(OR2))2,其中R1和R2分别从阴离子、H、烷基和芳基组成的组中独立选择,且其中R3和R4中至少有一个是连接到聚合物框架的基团,但有一个限制条件,即当R3和R4中仅有一个是这样的连接基团时,另一个R3和R4要么是能够连接到聚合物框架的基团,要么是这种基团的残基,或者从H、OH、OR5和R5组成的组中选择,其中R5是较低的烷基。聚合物框架可能包括锰离子。还披露了制备含锰的纳米结构的方法,包含这种含锰纳米结构的组合物以及使用这种含锰纳米结构,例如作为MRI对比剂。