Development of a bivalent dopamine D₂ receptor agonist.

Development of a bivalent dopamine D₂ receptor agonist.
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开发二价多巴胺 D2 受体激动剂。

DOI:
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发表时间:
2011
影响因子:
7.3
通讯作者:
P. Gmeiner
P. Gmeiner
中科院分区:
医学1区
文献类型:
--
作者:
Julia Kühhorn;Angela Götz;H. Hübner;Dawn Thompson;Jennifer L. Whistler;P. Gmeiner

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二价D-₂激动剂可以作为发现新的神经疗法的有用的分子探针。在我们最近开发的二价多巴胺D-₂受体拮抗剂1的基础上,用22个原子组成的间隔基合成了二价激动剂2。与含有封端间隔物的单价对照化合物6相比,双氨基吲哚衍生物2的竞争曲线明显变陡,表明为二价结合模式。二聚体特有的希尔斜率不是不同功能特性的结果,因为多巴胺能2和单价控制剂6都被证明是D₂激动剂,显著抑制cAMP积累和诱导D₂受体内化。对含有激动剂和苯基哌嗪拮抗剂药效团的异二价配体8和9的研究表明,置换曲线和拮抗剂对非常弱的部分激动剂性质有适度的陡化。
Bivalent D₂ agonists may function as useful molecular probes for the discovery of novel neurological therapeutics. On the basis of our recently developed bivalent dopamine D₂ receptor antagonists of type 1, the bivalent agonist 2 was synthesized when a spacer built from 22 atoms was employed. Compared to the monovalent control compound 6 containing a capped spacer, the bis-aminoindane derivative 2 revealed substantial steepening of the competition curve, indicating a bivalent binding mode. Dimer-specific Hill slopes were not a result of varying functional properties because both the dopaminergic 2 and the monovalent control agent 6 proved to be D₂ agonists substantially inhibiting cAMP accumulation and inducing D₂ receptor internalization. Investigation of the heterobivalent ligands 8 and 9, containing an agonist and a phenylpiperazine-based antagonist pharmacophore, revealed moderate steepening of the displacement curves and antagonist to very weak partial agonist properties.
DOI: 10.1126/science.288.5463.154
发表时间: 2000-04-07
期刊: SCIENCE
影响因子: 56.9
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通讯作者: Patel, YC
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