Differentiation between Partial Agonists and Neutral 5-HT<sub>1B</sub> Antagonists by Chemical Modulation of 3-[3-(<i>N,N</i>-Dimethylamino)propyl]-4-hydroxy- <i>N</i>-[4-(pyridin-4-yl)phenyl]benzamide (GR-55562)
作者:Marie Lamothe、Petrus J. Pauwels、Karine Belliard、Philippe Schambel、Serge Halazy
DOI:10.1021/jm9702948
日期:1997.10.1
evaluate the influence of the alkylamino side chain conformation on binding and intrinsic activity. Whereas 2 and its derivatives display a similar binding affinity profile, major differences arise from analysis of the intrinsic activity data at h5-HT1B receptors. The O-methylated analog of 2, 3-[3-(N,N-dimethylamino)propyl]-4-methoxy- N-[4-(pyridin-4-yl)phenyl]benzamide (3a), and the (1Z)-3-(N,N-dime
3- [3-(N,N-二甲基氨基)丙基] -4-羟基-N- [4-(吡啶-4-)的克隆h5-HT1D,h5-HT1D和h5-HT1A受体的合成和结合亲和力描述了一种基团);和四个O-甲基化的类似物。使用[35S] GTPγS结合测定法在h5-HT1B受体处确定了这些化合物的功能活性。为了评估烷基氨基侧链构象对结合和内在活性的影响,已经制备了四个类似物。尽管2及其衍生物显示出相似的结合亲和力特征,但主要差异来自对h5-HT1B受体的内在活性数据的分析。2,3- [3-(N,N-二甲基氨基)丙基] -4-甲氧基-N- [4-(吡啶-4-基)苯基]苯甲酰胺(3a)和(1Z )-3-(N,N-二甲基氨基)丙-1-烯衍生物(3c)充当中性和强效拮抗剂(与2相似),而3-(N,N-二甲基氨基)-丙-1-炔基(3b)和( 1E)-3-(N,N-二甲基氨基)丙-1-烯基(3d)类似物显示出不可忽略的激动剂