首页> 外文期刊>European Journal of Medicinal Chemistry: Chimie Therapeutique >Synthesis, biological activity and molecular modelling of new trisubstituted 8-azaadenines with high affinity for A1 adenosine receptors.
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Synthesis, biological activity and molecular modelling of new trisubstituted 8-azaadenines with high affinity for A1 adenosine receptors.

机译:对A1腺苷受体具有高亲和力的新型三取代8-氮杂腺嘌呤的合成,生物学活性和分子模型。

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摘要

We describe here the synthesis and biological activity of new 8-azaadenines bearing both a phenyl group on C(2) and a 9-benzyl group substituted in the ortho position with a Cl or a F atom or a CF(3) group, to verify the synergistic effect of a combination of these substitution patterns on binding with the A(1) adenosine receptors. In position N(6) aliphatic and cycloaliphatic substituents were chosen which had been shown to bind well with the A(1) receptors. Because of the high lipophilicity of these kinds of molecules, we also introduced a hydroxyalkyl substituent in the same position. The compounds obtained generally showed a very good affinity and selectivity for A(1) receptors. Some of the compounds showed K(i) in the nanomolar range, one even in the subnanomolar range (0.6 M). Molecular docking calculations were performed in order to evaluate the interaction energies between the bovine A(1) receptor model and the selected ligands, and then to correlate these energies with biological activities ofthe ligands as obtained from the experiments. Molecular docking analysis suggests different binding modes towards A(1) receptors that are plausible for these ligands.
机译:我们在这里描述了新的8-氮杂腺嘌呤的合成和生物活性,这些新的8-氮杂腺嘌呤同时带有C(2)上的苯基和在邻位被Cl或F原子或CF(3)基取代的9-苄基,验证这些取代模式的组合对与A(1)腺苷受体结合的协同作用。在位置N(6)的脂肪族和脂环族取代基被选择与A(1)受体结合得很好。由于这些分子的亲脂性高,我们还在相同位置引入了羟烷基取代基。获得的化合物通常对A(1)受体表现出非常好的亲和力和选择性。一些化合物显示出K(i)在纳摩尔范围内,甚至在亚纳摩尔范围内(0.6 M)也有一个。进行分子对接计算是为了评估牛A(1)受体模型与所选配体之间的相互作用能,然后将这些能与从实验中获得的配体的生物活性相关联。分子对接分析表明,针对这些配体的A(1)受体具有不同的结合模式。

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