Ligands for radiopharmaceutical use are capable of chelating radiometal species and of being bound to biological targeting molecules. The ligands have the formula
where
A, A' =-SZ or Y
B =O or S
Y =
Z =H or a thiol protecting group
m =2 or 3
n =2 or 3
q =0 or 1
R =H or unsubstituted or substituted hydrocarbon and pharmaceutically acceptable salts,
provided that at least one CR₂ group represents CO and forms, together with an adjacent N atom, a -CONR- amide group.
用于放射性药物的
配体能够螯合放射性
金属物种并与
生物靶向分子结合。
配体的
化学式为
式中
A、A' =-SZ 或 Y
B =O 或 S
Y =
Z =H 或
硫醇保护基团
m =2 或 3
n =2 或 3
q =0 或 1
R =H 或未取代或取代的烃和药学上可接受的盐、
但至少有一个 CR₂ 基团代表 CO,并与相邻的 N 原子形成-CONR-酰胺基团。