Indene-based frameworks targeting the 5-HT6 serotonin receptor: Ring constraint in indenylsulfonamides using cyclic amines and structurally abbreviated counterparts
作者:Ermitas Alcalde、Neus Mesquida、Sara López-Pérez、Jordi Frigola、Ramon Mercè、Jörg Holenz、Marta Pujol、Enrique Hernández
DOI:10.1016/j.bmc.2009.08.006
日期:2009.10
Further studies in quest of 5-HT6 serotonin receptor ligands led to the design and synthesis of a few selected examples of N-(inden-5-yl)sulfonamides with a ring-constrained aminoethyl side chain at the indene 3-position, some of which exhibited a high binding affinity, such as the pyrrolidine analogue 28 (Ki = 3 nM). Moreover, the structurally abbreviated N-(inden-5-yl)sulfonamides showed Ki values
对5-HT 6血清素受体配体的进一步研究导致设计和合成了一些选定的实例,这些实例在茚3位具有环约束的氨乙基侧链的N-(茚基-5-基)磺酰胺,一些其表现出高的结合亲和力,例如吡咯烷类似物28(K i = 3 nM)。而且,结构缩写的N-(茚基-5-基)磺酰胺显示K i值⩾43nM,这表明N,N结合需要3-氨基乙基或在茚3-位的构象受限的氨基乙基侧臂。然后在功能性cAMP刺激试验中测试了选定的化合物,发现它们可作为5-HT 6拮抗剂,尽管在微摩尔水平上具有中等效力。