Pharmacophore-Guided Drug Discovery Investigations Leading to Bioactive 5-Aminotetrahydropyrazolopyridines. Implications for the Binding Mode of Heterocyclic Dopamine D3 Receptor Agonists
作者:Jan Elsner、Frank Boeckler、Frank W. Heinemann、Harald Hübner、Peter Gmeiner
DOI:10.1021/jm0503805
日期:2005.9.1
advantage of a 3D-QSAR based pharmacophore hypothesis, synthesis and biological evaluation of dopaminergic 5-aminotetrahydropyrazolo[1,5-a]pyridines are described. The data displayed substantial and selective D3 receptor affinity for the heterocyclic test compound (+/-)-1 when the enantiomer (S)-1 turned out to be responsible for the D3 binding (K(i) (high) = 4.0 nM). (S)-1 exhibited binding affinity
利用基于3D-QSAR的药效团假说,描述了多巴胺能5-氨基四氢吡唑并[1,5-a]吡啶的合成和生物学评估。当对映异构体(S)-1证明是与D3结合的原因时,数据显示出对杂环测试化合物(+/-)-1的实质性和选择性D3受体亲和力(K(i)(高)= 4.0 nM) 。(S)-1表现出与我们先前描述的D3激动剂FAUC 54相当的结合亲和力和配体功效,可显着改善亚型的选择性。结果表明,多巴胺能药物(S)-1和普拉克索的吡唑和噻唑环的sp(2)氮分别是最重要的药效学元素。为了提供对(S)-1的高亲和力的推定解释,