High Affinity Central Benzodiazepine Receptor Ligands: Synthesis and Biological Evaluation of a Series of Phenyltriazolobenzotriazindione Derivatives
作者:Giampaolo Primofiore、Federico Da Settimo、Sabrina Taliani、Silvia Salerno、Ettore Novellino、Giovanni Greco、Barbara Cosimelli、François Besnard、Barbara Costa、Marina Montali、Claudia Martini
DOI:10.1021/jm0408722
日期:2005.4.1
when tested for their affinity on recombinant rat alpha1beta2gamma2, alpha2beta2gamma2, and alpha5beta3gamma2 GABA(A)/Bz receptor subtypes, showed enhanced affinities for the alpha1beta2gamma2 isoform, with compounds 45 and 49 exhibiting the highest selectivity. Moreover, compounds 45 and 49 were found to display a full agonist efficacy profile at alpha1 and alpha2 receptor subtypes, and an antagonist
制备了一系列2-苯基[1,2,3]三唑并[1,2-a] [1,2,4]苯并三嗪-1,5(6H)-二酮(PTBT)VII,并在该温度下进行了测试。中枢苯并二氮杂receptor受体(BzR)。通过正式结合已知BzR配体的NC = O部分,三唑并喹喔啉(IV)和三嗪基苯并咪唑(ATBI)(VI)来设计这些化合物的骨架。大多数PTBT在BzR处显示出亚微摩尔/纳摩尔的效力。通常发现9-氯衍生物(45-49)比其9-未取代的对应物(37-44)更有效。事实证明,化合物45是最强的PTBT(K(i)2.8 nM)。测试了部分化合物(37、42、45、49)对重组大鼠alpha1beta2gamma2,alpha2beta2gamma2和alpha5beta3gamma2 GABA(A)/ Bz受体亚型的亲和力后,它们对alpha1beta2gamma2亚型的亲和力增强,化合物45和49表现出最高的选