期刊
BIOORGANIC & MEDICINAL CHEMISTRY
卷 19, 期 23, 页码 7158-7167出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmc.2011.09.061
关键词
Alzheimer's disease; BACE 1; AChE; H3R; Multi-Target-Directed Ligands
资金
- Zhejiang Provincial Natural Foundation of China [R2110297]
A novel series of quinoxaline derivatives, as Multi-Target-Directed Ligands (MTDLs) for AD treatment, were designed by lending the core structural elements required for H3R antagonists and hybridizing BACE 1 inhibitor 1 with AChE inhibitor BYYT-25. A virtual database consisting of quinoxaline derivatives was first screened on a pharmacophore model of BACE 1 inhibitors, and then filtered by a molecular docking model of AChE. Seventeen quinoxaline derivatives with high score values were picked out, synthesized and evaluated for their biological activities. Compound 11a, the most effective MTDL, showed the potent activity to H3R/AChE/BACE 1 (H3R antagonism, IC50 = 280.0 +/- 98.0 nM; H3R inverse agonism, IC50 = 189.3 +/- 95.7 nM; AChE, IC50 = 483 +/- 5 nM; BACE 1, 46.64 +/- 2.55% inhibitory rate at 20 mu M) and high selectivity over H1R/H2R/H4R. Furthermore, the protein binding patterns between 11a and AChE/BACE 1 showed that it makes several essential interactions with the enzymes. (C) 2011 Elsevier Ltd. All rights reserved.
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