Synthesis and evaluation of fluorine-substituted 1H-pyrrolo[2,3-b]pyridine derivatives for dopamine D4 receptor imaging
作者:Seung-Jun Oh、Kyo Chul Lee、Sang-Yoon Lee、Eun Kyoung Ryu、Hideo Saji、Yearn Seong Choe、Dae Yoon Chi、Sang Eun Kim、Jeewoo Lee、Byung-Tae Kim
DOI:10.1016/j.bmc.2004.08.011
日期:2004.11
o[2,3-b]pyridine (L-750,667) and evaluated as potential dopamine D(4) receptor imaging agents by positron emission tomography (PET). Binding affinities of these ligands for the dopamine D(2), D(3), and D(4) receptor subtypes were measured in vitro. Most ligands showed high and selective binding for the D(4) receptor. Ligand 7 had high affinity for the D(4) receptor, whereas ligands 1, 2, and 6 showed
基于铅配体3-[[[4-(4-碘苯基)哌嗪-1-基]-甲基] -1H-吡咯[2]合成了七个氟取代的1H-吡咯并[2,3-b]吡啶衍生物,3-b]吡啶(L-750,667)并通过正电子发射断层扫描(PET)评估为潜在的多巴胺D(4)受体成像剂。这些配体对多巴胺D(2),D(3)和D(4)受体亚型的结合亲和力在体外进行了测量。大多数配体显示出对D(4)受体的高选择性结合。配体7对D(4)受体具有高亲和力,而配体1、2和6对D(4)受体具有高选择性。计算该系列中的配体的LogP值,并且配体6具有最低的亲脂性。(18)F标记的配体7在小鼠中表现出均匀的区域脑分布和快速冲洗,这可能是由于非特异性结合所致。