formation mediated by the human 5-HT(1B) receptor (formerly the 5-HT(1Dbeta) receptor) demonstrate that all of these serotonin dimers behave as full agonists. Among them, the piperazide derivatives of bis-serotonin, 4g,j, were also identified as very potent agonists in contracting the New Zealand white rabbit saphenous vein (pD2 = 7.6 in each case compared to 5.8 for sumatriptan). Results analysis supports
已经制备了一系列式4的5-羟
色胺二聚体,其中两个5-羟
色胺部分通过它们的5-羟基残基连接在一起,并被评价为5-HT(1B / 1D)受体激动剂。对克隆的人5-HT(1B),5-HT(1D)和5-HT(1A)受体的结合实验表明,所有这些二聚体都是5-HT(1B / 1D)受体上非常有效的
配体,具有增强的结合力与5-羟
色胺相比,对5-HT(1A)受体的选择性更高。对人类5-HT(1B)受体(以前称为5-HT(1Dbeta)受体)介导的
毛喉素刺激的c-
AMP形成抑制作用的研究表明,所有这些5-羟
色胺二聚体均表现为完全激动剂。其中,双5-羟
色胺的
哌嗪衍
生物4g,j也被认为是收缩新西兰白兔大隐静脉的强效激动剂(pD2分别为7.6和5.6)。
舒马曲坦为8)。结果分析支持以下假设:5-羟
色胺二聚体效能的重要提高可归因于同一分子中存在两种5-羟
色胺药效团,而对5-HT(1B / 1D)受体亚型的选择性增强