3-Aryl-[1,2,4]triazino[4,3-<i>a</i>]benzimidazol-4(10<i>H</i>)-ones: Tricyclic Heteroaromatic Derivatives as a New Class of Benzodiazepine Receptor Ligands
作者:Giampaolo Primofiore、Federico Da Settimo、Sabrina Taliani、Anna Maria Marini、Concettina La Motta、Ettore Novellino、Giovanni Greco、Marco Gesi、Letizia Trincavelli、Claudia Martini
DOI:10.1021/jm991131h
日期:2000.1.1
A series of 3-substituted [1,2,4]triazino[4,3-c]benzimidazoles V were prepared and tested at the central benzodiazepine receptor (BzR). These compounds were designed as rigid analogues of the previously described N-benzylindolylglyoxylylamide derivatives IV. The title compounds V showed an affinity which depended directly on the presence of the N(10)-H group and an aromatic ring at position 3. Some
制备了一系列3-取代的[1,2,4]三嗪[4,3-c]苯并咪唑V,并在中央苯并二氮杂pine受体(BzR)上进行了测试。这些化合物被设计为先前描述的N-苄基吲哚基二烯丙基乙二酰胺衍生物IV的刚性类似物。标题化合物V显示出亲和力,该亲和力直接取决于N(10)-H基团和位置3上的芳环的存在。相对于吲哚基二羟乙酰胺,它们中的一些引起了2倍或3倍的高亲和力。导数IV(R = H)。GABA比和[(35)S]-叔丁基环磷酸硫代酸酯结合数据揭示了化合物1c,e,f,j,k的部分反向激动剂/拮抗剂和2c的部分激动剂的功效谱。该最后的化合物被证明可有效拮抗戊四氮诱导的小鼠癫痫发作。