The 14-O-benzylnaltrexones 3–6 were prepared from naltrexone (2) in several steps. The novel compounds were biologically evaluated in radioligand binding and in [35S]GTPγS functional assays in comparison to the reference compound naltrexone. In the binding assay, compounds 3–6 exhibited preference for κ opioid receptors, while the parent compound naltrexone shows preference for μ receptors. In the
14- O-苄基
纳曲酮3 – 6是由
纳曲酮(2)分几步制备的。新化合物在放射性
配体结合物的
生物评估和[ 35 S] GTP γ š功能测定相比于参考化合物
纳曲酮。在结合测定中,化合物3 – 6对κ阿片受体表现出偏爱,而母体化合物
纳曲酮对μ受体表现出偏爱。在功能测定中,化合物3 – 6的μ拮抗剂效力在
纳曲酮范围内,而κ 与
纳曲酮相比,大多数新型化合物的拮抗药效力要高得多。