2-methoxy substituents. High affinity for both sigma 1 and sigma 2 binding sites was achieved with these compounds. Additionally, these compounds had relatively high affinity for serotonin 5-HT1A and 5-HT2A, dopamine D2, and adrenergic alpha 1 receptors. Introduction of a 4-fluorophenyl substituent at the indole nitrogen atom rendered very selective sigma 2 ligands with subnanomolar affinity for the sigma 2
合成了一系列的4-(1H-
吲哚-3-基)-1-丁基取代的
4-苯基哌啶,
4-苯基-1,2,3,6-四氢吡啶和4-苯基
哌嗪。苯基任选地被4-
氟或2-甲氧基取代基取代。用这些化合物实现了对sigma 1和sigma 2结合位点的高亲和力。另外,这些化合物对5-羟
色胺5-HT1A和5-HT2A,
多巴胺D2和
肾上腺素α1受体具有较高的亲和力。在
吲哚氮原子处引入4-
氟苯基取代基使得对σ2结合位点具有亚纳摩尔亲和力的非常选择性的σ2
配体。这种化合物的原型是1-(4-
氟苯基)-3- [4- [4-(4-
氟苯基)-1-
哌啶基] -1-丁基] -1H-
吲哚,11a(代码Lu 29) -253)。该化合物具有以下结合亲和力:IC50(sigma 1)= 16 nM,IC50(sigma 2)= 0.27 nM,IC50(5-HT1A)= 22,000 nM,IC50(5-HT2A)= 270 nM,IC50(D2)=