申请人:AMERSHAM INTERNATIONAL plc
公开号:EP0386873A1
公开(公告)日:1990-09-12
A tridentate mono-anionic ligand having the structure
R₂X - A - YR - Q - Z
where
X is P, As or N
Y is P, As or N
Z is phenolic OH, thiophenol or thiol,
each of A and Q is a C1-C4 hydrocarbon bridge, two adjacent C atoms of which may form part of a benzene ring and which may carry at least one C1-C4 alkyl, alkoxy alkyl, alkoxy or tetrahydropyran substituent,
R may be the same of different at different places in the molecule, and in each case is selected from C1 to C4 alkyl, alkoxy, alkoxyalkyl and alkoxyalkoxy alkyl.
The ligands form cationic complexes with Technetium-99m, having imaging properties.
具有以下结构的三叉单阴离子配体
r₂x - a - yr - q - z
其中
X 是 P、As 或 N
Y 是 P、As 或 N
Z 是酚 OH、噻吩酚或硫醇、
A 和 Q 各为 C1-C4 烃桥,其中相邻的两个 C 原子可构成苯环的一部分,并可带有至少一个 C1-C4 烷基、烷氧基烷基、烷氧基或四氢吡喃取代基、
R 在分子中的不同位置可以相同或不同,在每种情况下均选自 C1-C4 烷基、烷氧基、烷氧基烷基和烷氧基烷氧基烷基。
配体与锝-99m 形成阳离子络合物,具有成像特性。