Synthesis and Characterization of the First Fluorescent Antagonists for Human 5-HT<sub>4</sub> Receptors
作者:Isabelle Berque-Bestel、Jean-Louis Soulier、Mireille Giner、Lucie Rivail、Michel Langlois、Sames Sicsic
DOI:10.1021/jm0307887
日期:2003.6.1
Fluorescent antagonists for human 5-HT(4) receptors were synthesized based on ML10302 1, a potent 5-HT(4) receptor agonist and on piperazine analogue 2. These molecules were derived with three fluorescent moieties, dansyl, naphthalimide, and NBD (7-nitrobenz-2-oxa-1,3-diazol-4-yl), through alkyl chains. The synthesized molecules were evaluated in binding assays on the recently cloned human 5-HT(4(e))
基于ML10302 1,有效的5-HT(4)受体激动剂和哌嗪类似物2合成了人类5-HT(4)受体的荧光拮抗剂。这些分子衍生自三个荧光基团:丹磺酰基,萘二甲酰亚胺和NBD( 7-硝基苯-2-氧杂-1,3-二氮杂-4-基),通过烷基链。合成的分子在结合测定中评估了最近克隆的人5-HT(4(e))受体同工型,在C6神经胶质细胞中稳定表达,[[3] H] GR113808作为放射性配体。亲和力值取决于基础结构以及烷基链长。与基于哌嗪类似物的衍生物相比,基于ML10302的衍生物具有更强的配体。对于基于ML10302的配体,丹磺酰基和NBD衍生物分别通过一个碳原子17a和32的链长连接,导致亲和力接近ML10302。最有效的化合物17a,28和32在具有纳摩尔K(b)值的同一细胞系统中对5-HT刺激的环AMP合成产生抑制作用。更具体地研究了17a,28和32的荧光性质。使用h5-HT(4(e))受体