Structure–Activity Relationships of 1‐Benzoylazulenes at the OX
<sub>1</sub>
and OX
<sub>2</sub>
Orexin Receptors
作者:Ainoleena Turku、Teppo O. Leino、Lasse Karhu、Jari Yli‐Kauhaluoma、Jyrki P. Kukkonen、Erik A. A. Wallén、Henri Xhaard
DOI:10.1002/cmdc.201900074
日期:2019.5.6
receptor agonists. For potentiators, replacement of the azulene scaffold by indole retained the activity of four out of six compounds. The structure-activity relationships for agonism and potentiation can be summarized into a bicyclic aromatic ring system substituted with two hydrogen-bond acceptors (1-position, benzoyl; 6-position, carboxyl/ester) within 7-8 Å of each other; a third acceptor at the 3-position
先前我们证明了二或三取代的天青石作为orexin受体的配体(增强剂,弱激动剂和拮抗剂)的潜力。在这项研究中,我们研究了27种1-苯甲酰基azulene衍生物,揭示了ox1对orexin反应的7种增强剂和2种弱双orexin受体激动剂。对于增效剂,用吲哚代替the唑骨架保留了六种化合物中四种的活性。激动和增强作用的构效关系可以概括为一个双环芳香环系统,该系统被两个氢键受体(1-位,苯甲酰基; 6-位,羧基/酯)相互取代,彼此之间的距离为7-8;在3位的第三个受体也被很好地耐受。从分子动力学模拟中,在orexin受体激动剂Nag26的优选构象中发现了相同的药效学特征。细微的变化在弱激动和增强之间切换活性,表明结合位点重叠。