Design, Synthesis, and Pharmacological Characterization of Novel Spirocyclic Quinuclidinyl-Δ2-Isoxazoline Derivatives as Potent and Selective Agonists of α7 Nicotinic Acetylcholine Receptors
作者:Clelia Dallanoce、Pietro Magrone、Carlo Matera、Fabio Frigerio、Giovanni Grazioso、Marco De Amici、Sergio Fucile、Vanessa Piccari、Karla Frydenvang、Luca Pucci、Cecilia Gotti、Francesco Clementi、Carlo De Micheli
DOI:10.1002/cmdc.201000514
日期:2011.5.2
experiments against human α7 and α4β2 receptors stably expressed in cell lines, behaved as partial α7 agonists with varying levels of potency. The two enantiomers of (±)‐3‐methoxy‐1‐oxa‐2,7‐diaza‐7,10‐ethanospiro[4.5]dec‐2‐ene sesquifumarate 6 a were prepared using (+)‐dibenzoyl‐L‐ or (−)‐dibenzoyl‐D‐tartaric acid as resolving agents. Enantiomer (R)‐(−)‐6 a was found to be the eutomer, with Ki values of
一组外消旋螺环奎宁环基-Δ的2 -isoxazoline衍生物是使用1,3-偶极环加成的基于的方法合成。测定靶标化合物对大鼠神经元同型(α7)和异型(α4β2)烟碱型乙酰胆碱受体的结合亲和力。Δ 2个-Isoxazolines 3(3-BR),6(3-OME),5(3-PH),8(3-O- Ñ PR)和4(3-Me)的均与配体对α7亚型的最高亲和力(K i值等于13.5、14.2、25.0、71.6和96.2 n M),并显示出出色的α7对α4β2亚型选择性。这些化合物经过针对在细胞系中稳定表达的人α7和α4β2受体的电生理实验测试,表现为部分α7激动剂,具有不同的效力水平。的两个对映体的(±)-3-甲氧基-1-氧杂-2,7-二氮杂-7,10- ethanospiro [4.5]癸-2-烯倍半富马酸盐6,使用(+)制备-二苯甲酰基大号-或(-)-二苯甲酰基-D-酒石酸作为拆分剂。对映异构体([R