Structure-based design, synthesis and biological evaluation of novel β-secretase inhibitors containing a pyrazole or thiazole moiety as the P3 ligand.

Structure-based design, synthesis and biological evaluation of novel β-secretase inhibitors containing a pyrazole or thiazole moiety as the P3 ligand.
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DOI:
10.1016/j.bmcl.2014.11.087
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发表时间:
2015-02-01
影响因子:
2.7
通讯作者:
Tang, Jordan
Tang, Jordan
中科院分区:
医学4区
文献类型:
--
作者:
Ghosh, Arun K.;Brindisi, Margherita;Yen, Yu-Chen;Xu, Xiaoming;Huang, Xiangping;Devasamudram, Thippeswamy;Bilcer, Geoffrey;Lei, Hui;Koelsch, Gerald;Mesecar, Andrew D.;Tang, Jordan

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我们描述了一系列以吡唑(化合物3a-h)或噻唑片段(化合物4a-e)为P3配体的新型抑制剂的基于结构的设计、合成和生物学评价。我们还探索了Boc-β-氨基- l -丙氨酸作为一种新的P2配体。许多抑制剂显示出β-分泌酶抑制效力。抑制剂4c对BACE1具有较强的抑制活性,Ki = 0.25 nM,细胞EC50为194 nM,对BACE2具有较好的选择性。根据2结合β-Secretase的x射线结构建立了4c模型,揭示了活性部位的关键相互作用。
We describe structure-based design, synthesis and biological evaluation of a series of novel inhibitors bearing a pyrazole (compounds 3a-h ) or a thiazole moiety (compounds 4a-e) as the P3 ligand. We have also explored Boc-β-amino-L-alanine as a novel P2 ligand. A number of inhibitors have displayed β-secretase inhibitory potency. Inhibitor 4c has shown po tent BACE1 inhibitory activity, Ki = 0.25 nM, cellular EC50 of 194 nM and displayed good selectivity over BACE2. A model of 4c was created based upon the X-ray structure of 2-bound β-Secretase which revealed critical interactions in the active site.
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