New N-aryl-N′-(3-(substituted)phenyl)-N′-methylguanidines as leads to potential PET radioligands for imaging the open NMDA receptor
作者:Gregory R. Naumiec、Lisheng Cai、Victor W. Pike
DOI:10.1016/j.bmcl.2014.11.066
日期:2015.1
vitro. Four ligands displayed affinities that are similar or superior to those of the promising SPECT radioligand ([123I]CNS1261). The 3′-dimethylamino (19; Ki 36.7 nM), 3′-trifluoromethyl (20; Ki 18.3 nM) and 3′-methylthio (2; Ki 39.8 nM) derivatives of N-1-naphthyl-N′-(phenyl)-N′-methylguanidine were identified as especially attractive leads for PET radioligand development.
一个广阔的组ñ -芳基- ñ ' - (3-(取代的)苯基) - ñ '在为新的线索以预期PET配体的搜索制备用于所述的开口通道的成像-methylguanidines Ñ甲基d -体内天冬氨酸(NMDA)受体。所述Ñ芳基环和它们的取代基是变化的,而Ñ甲基组保持作为与正电子发射体,碳-11(潜在标记的位点吨1/2 = 20.4分钟)。在微摩尔浓度下,超过一半的制备化合物强烈抑制了[ 3H] TCP与其在体外NMDA受体中的结合位点有关。四个配体显示出与有希望的SPECT放射性配体([ 123 I] CNS1261)相似或更高的亲和力。3'-二甲基氨基(19 ; ķ我36.7纳米),3'-三氟甲基(20 ; ķ我18.3 1nM)和3'-甲硫基(2 ; ķ我39.8纳米)的衍生物ñ -1-萘基Ñ ' -已确定(苯基)-N'-甲基胍是PET放射性配体发展的特别有吸引力的先导。