New Generation Dopaminergic Agents. 6. Structure−Activity Relationship Studies of a Series of 4-(Aminoethoxy)indole and 4-(Aminoethoxy)indolone Derivatives Based on the Newly Discovered 3-Hydroxyphenoxyethylamine D<sub>2</sub> Template
作者:Richard E. Mewshaw、Michael B. Webb、Karen L. Marquis、Georgia B. McGaughey、Xiaojie Shi、Theodore Wasik、Rosemary Scerni、Julie A. Brennan、Terrance H. Andree
DOI:10.1021/jm990023s
日期:1999.6.1
A series of 4-(aminoethoxy)indoles 7 and a related series of 4-(aminoethoxy)indolones 8 were synthesized and evaluated for their affinity for both the high- and low-affinity agonist states (D2High and D2Low, respectively) of the dopamine (DA) D2 receptor. The 4-aminoethoxy derivatives (i.e., 7 and 8) were designed as bioisosteric analogues based on the phenol prototype 4. The indolones 8 were observed
合成了一系列的4-(氨基乙氧基)吲哚7和相关的一系列的4-(氨基乙氧基)吲哚酮8并评估了它们对多巴胺的高亲和力和低亲和力激动剂状态(分别为D2High和D2Low)的亲和力(DA)D2受体。基于酚原型4,将4-氨基乙氧基衍生物(即7和8)设计为生物立体异构体类似物。观察到吲哚酮8对D2High受体具有高亲和力。他们先前报道的苯并二氢吡喃类似物与更灵活的4-(氨基乙氧基)吲哚的比较显示,该苯并二氢吡喃类似物更有效,而4-(氨基乙氧基)吲哚并酮与它们各自的苯并二氢吡喃类似物相比,观察到的D2高亲和力几乎没有损失。苯氧基乙胺骨架的几个区域被修改,并被认为是潜在的位点,以调节内在活性的水平。进行了构象分析,并提出了基于McDermed模型的符合D2激动剂药效团标准的假定生物活性构象。从这些研究中获得的构效关系有助于合成具有不同内在活性水平的D2部分激动剂。这些药物在治疗由低多巴胺能和高多巴胺能活性