The present invention is directed towards novel folate-conjugates of formula I
wherein F is a folate or derivative thereof, Z
1
, Z
2
, Z
3
are independently of each other C or N, S
1
to S
4
are independently of each other a single bond or a spacer, R
a
, R
a′
, and R
b
are donor groups and/or another group F, R
c
is optionally another group F and n is 1 or 2.
The invention further contemplates the corresponding metal-chelate complexes as well as pharmaceutical compositions thereof, and their uses in diagnostic imaging and radiotherapy.
本发明涉及一种新型叶酸结合物,其
化学式为I式,其中F为叶酸或其衍
生物,Z1、Z2、Z3分别为C或N,S1至S4分别为单键或间隔物,Ra、Ra'和Rb为给体基团和/或另一种F基团,Rc可选为另一种F基团,n为1或2。本发明还涉及相应的
金属螯合物配合物及其制备的制药组合物,以及它们在诊断成像和放射治疗中的用途。