Novel Fused Pyrrole Heterocyclic Ring Systems as Structure Analogs of LE 300: Synthesis and Pharmacological Evaluation as Serotonin 5-HT<sub>2A</sub>, Dopamine and Histamine H<sub>1</sub>Receptor Ligands
作者:Sherif A. F. Rostom
DOI:10.1002/ardp.200900219
日期:2010.1.27
rings were removed and replaced with a 1H‐pyrrole counterpart. Accordingly, some new analogs of LE 300 namely, pyrrolo[2,3‐g]indolizine, pyrrolo[3,2‐a]quinolizine rings and their corresponding dimethylpyrrolo[2,3‐d]azonine, and dimethylpyrrolo[2,3‐d]azecine were synthesized to be evaluated for their activity at the 5‐HT2A and dopamine D1, D2L, D4, D5 receptors in relation to LE 300. In addition, their
LE 300 代表一种结构新颖的拮抗剂,优先作用于多巴胺 D1/D5 受体和血清素 5-HT2A 受体。该化合物由一个十元中央氮杂环辛烷环与一侧的吲哚环和另一侧的苯部分稠合组成。为了评估吲哚和/或苯基部分在这种高活性苯并吲哚并氮杂环辛烷中的重要性,两个环都被去除并替换为 1H-吡咯对应物。因此,LE 300 的一些新类似物,即吡咯并[2,3-g]吲哚嗪、吡咯并[3,2-a]喹啉环及其相应的二甲基吡咯并[2,3-d]氮酮和二甲基吡咯并[2,3-合成 d]azecine 以评估其对 5-HT2A 和多巴胺 D1、D2L、D4、D5 受体的活性,与 LE 300 相关。此外,还测定了它们对 H1-组胺受体的活性。结果表明,刚性吡咯并[2,3-g]吲哚嗪7和吡咯并[3,2-a]喹嗪8类似物在采用的三种生物测定中缺乏生物活性。然而,它们相应的柔性吡咯并[2,3-d]氮杂11和吡咯并[2,3-d]氮杂