Mapping the Melatonin Receptor. 5. Melatonin Agonists and Antagonists Derived from Tetrahydrocyclopent[<i>b</i>]indoles, Tetrahydrocarbazoles and Hexahydrocyclohept[<i>b</i>]indoles
作者:David J. Davies、Peter J. Garratt、Derek A. Tocher、Stefan Vonhoff、John Davies、Muy-Teck Teh、David Sugden
DOI:10.1021/jm970246n
日期:1998.2.1
tetrahydrocarbazoles 2 (R = H) were mainly weak antagonists, while those with R = OMe were agonists. The biological behavior of the tetrahydrocarbazoles 9 (R = H) depended on R1, some being agonists and some antagonists, whereas those with R = OMe were generally agonists. Variation of the R and R1 groups in compounds of type 9 produced both agonists and antagonists. The tetrahydrocylopentaindoles 10 had similar
已经制备了四氢环戊[b]吲哚,四氢咔唑和六氢环庚[b]吲哚作为褪黑激素类似物,以研究褪黑激素受体结合位点的性质。在使用鸡脑膜的放射性配体结合测定法中比较了类似物的亲和力,并在非洲爪蟾黑色素细胞中测定了激动剂和拮抗剂的效价。N-酰基-3-氨基-6-甲氧基四氢咔唑(2)与N-酰基-4-(氨基甲基)-6-甲氧基-9-甲基四氢咔唑(9)的比较表明,后者对鸡肉的结合亲和力更高脑感受器。N-酰基-1-(氨基甲基)-7-甲氧基-4-甲基四氢环戊[b]吲哚(10),6-甲氧基四氢咔唑(9)的比较,和N-酰基-10-(氨基甲基)-2-甲氧基-5-甲基六氢环庚[b]吲哚(11)表明,四氢咔唑与环庚[b]吲哚和环戊[b]吲哚具有最高的结合亲和力。亲和力较低。所有这些观察结果都与我们在结合口袋中褪黑激素取向的假定模型相吻合,其中3-氨基乙烷侧链的构型接近于5-甲氧基,如9m的X射线晶体结构所示并且在能量最小的计算