Structure-Based Design, Synthesis, and In Vivo Antinociceptive Effects of Selective A<sub>1</sub> Adenosine Receptor Agonists
作者:Riccardo Petrelli、Mirko Scortichini、Carmela Belardo、Serena Boccella、Livio Luongo、Fabio Capone、Sonja Kachler、Patrizia Vita、Fabio Del Bello、Sabatino Maione、Antonio Lavecchia、Karl-Norbert Klotz、Loredana Cappellacci
DOI:10.1021/acs.jmedchem.7b01399
日期:2018.1.11
N6-substitution in adenosine derivatives leads to the highly selective human A1 adenosine receptor (hA1AR) agonists or highly potent dual hA1AR agonists and hA3AR antagonists. In order to explore novel dual adenosine receptor ligands, a series of N6-substituted-5′-pyrazolyl-adenosine and 2-chloro-adenosine derivatives were synthesized and assayed in vitro at all ARs. The N6-(±)-endo-norbornyl derivative 12 was
我们以前的工作发现,在腺苷衍生物中结合适当的5'-和N 6-取代可导致高度选择性的人A 1腺苷受体(hA 1 AR)激动剂或高效的双重hA 1 AR激动剂和hA 3 AR拮抗剂。为了探索新颖的双腺苷受体配体,合成了一系列N 6-取代的5'-吡唑基-腺苷和2-氯-腺苷衍生物,并在所有AR中体外测定。所述Ñ 6 - (±) -内型-norbornyl衍生物12是最有效的和选择性A处1AR在福尔马林试验中可作为镇痛药有效,但5'-吡唑基系列化合物均未在hA 1和hA 3 AR处表现出双重行为。分子建模研究合理化了一系列新的A 1 AR激动剂的结构-活性关系和选择性。有趣的是,假设了N 6-四氢呋喃基衍生物14的意外的反向结合模式,以解释其对A 1 AR的低亲和力。