The present invention relates to the synthesis and biological application of piperidinoyl carboxylic acid integrin antagonists affinity moiety of IFormula (I):
1
and Formula (II):
2
These affinity moieties maybe used with imaging agents or liposomes to target cells that express the &agr;
v
&bgr;
3
, &agr;
v
&bgr;
5
, or &agr;
v
&bgr;
6
integrin receptors.
本发明涉及合成和
生物应用具有I式(I)和II式(II)亲和性基团的
哌啶酰基
氨基酸整合素拮抗剂。这些亲和基团可以与成像剂或脂质体结合,以靶向表达αvβ3、αvβ5或αvβ6整合素受体的细胞。