Tricyclic Alkylamides as Melatonin Receptor Ligands with Antagonist or Inverse Agonist Activity
作者:Valeria Lucini、Marilou Pannacci、Francesco Scaglione、Franco Fraschini、Sivia Rivara、Marco Mor、Fabrizio Bordi、Pier Vincenzo Plazzi、Gilberto Spadoni、Annalida Bedini、Giovanni Piersanti、Giuseppe Diamantini、Giorgio Tarzia
DOI:10.1021/jm040768k
日期:2004.8.1
structures were thus selected because of the noncoplanar arrangement of their benzene rings, and an alkylamide chain was introduced to fit the requirements for MLT receptor binding, namely, dibenzocycloheptenes with an acylaminoalkyl side chain at position 10 and dibenzoazepines with this side chain originating from the nitrogen atom bridging the two phenyl rings. Binding affinity at human cloned MT1 and
这项工作报告了新型的烷基酰胺的设计和合成,其特征在于二苯并[a,d]环庚烯核是褪黑激素(MLT)受体配体。基于先前对MT1和MT2拮抗剂的定量结构活性研究,选择了三环支架,该研究将选择性MT2拮抗作用与MLT吲哚环平面之外的芳族取代基的存在相关。由于苯环的非共面排列,因此选择了一些二苯并七元结构,并引入了烷基酰胺链以满足MLT受体结合的要求,即在位置10处具有酰基氨基烷基侧链的二苯并环庚烯和在此侧具有二苯并氮杂源自氮原子的桥连两个苯环的链。通过2- [125I]碘弹性蛋白置换测定法测定对人克隆的MT1和MT2受体的结合亲和力,并通过GTPgammaS测试测定固有活性。大多数化合物的特征在于与MT1受体相比在MT2上具有更高的亲和力,并且固有活性值非常低,因此证实了两个芳香环的非共面排列对于选择性MT2拮抗作用的重要性。二苯并环庚烯通常显示出比二苯并氮杂finity更高的MT1和MT 2亲和力。N-(8-甲氧基-10