Development and Evaluation of Endothelin-A Receptor (Radio)Ligands for Positron Emission Tomography
作者:Kristin Michel、Katrin Büther、Marilyn P. Law、Stefan Wagner、Otmar Schober、Sven Hermann、Michael Schäfers、Burkhard Riemann、Carsten Höltke、Klaus Kopka
DOI:10.1021/jm101110w
日期:2011.2.24
tumor metastasis. A previously reported promising radioligand for positron emission tomography (PET) based on the non-peptide ETA receptor antagonist PD 156707 showed specific binding to target receptors in the myocardium but high accumulation in bile and intestine, probably because of its high lipophilicity. In this study we describe the synthesis of a series of fluorinated derivatives with hydrophilic
内皮素(ET)受体的表达和功能在心血管疾病,肿瘤进展和肿瘤转移中异常。先前报道的基于非肽ET A受体拮抗剂PD 156707的用于正电子发射断层扫描(PET)的有前途的放射性配体显示出与心肌中靶标受体的特异性结合,但在胆汁和肠中高积累,这可能是由于其高亲脂性。在这项研究中,我们描述了一系列具有亲水结构单元的氟化衍生物的合成。所有化合物被评估为高亲和力ET甲受体配体(16,17,23 - 26,ķ我= 1.4−7.9 nM),并且具有比ET B受体更高的亚型选择性。[ 18 F] 3-苯并[1,3]二氧杂环戊烯-5-基-4- 3- [1-(2- 2- [2-(2-氟乙氧基)乙氧基]乙氧基}乙基)-1- ħ -合成了[1,2,3]三唑-4-基甲氧基] -4,5-二甲氧基苄基} -5-羟基-5-(4-甲氧基苯基)-5 H-呋喃-2-酮([ 18 F] 17)作为该系列的放射性配体之一,在人血