Design, synthesis and anti-HIV evaluation of novel diarylpyridine derivatives targeting the entrance channel of NNRTI binding pocket
作者:Jiapei Yang、Wenmin Chen、Dongwei Kang、Xueyi Lu、Xiao Li、Zhaoqiang Liu、Boshi Huang、Dirk Daelemans、Christophe Pannecouque、Erik De Clercq、Peng Zhan、Xinyong Liu
DOI:10.1016/j.ejmech.2015.11.039
日期:2016.2
The development of novel NNRTIs with activity against variants of HIV-1RT is crucial for overcoming treatment failure. In the present study, a series of novel 6-substituted diarylpyridine derivatives targeting the entrance channel of the NNIBP of RT were designed through a molecular hybridization strategy. Encouragingly, these new diarylpyridine derivatives were found to be active against wild-type (WT) HIV-1 with an EC50 values ranging from 0.035 mu M to 1.99 mu M. Nearly half of them exhibited more potent inhibitory activities in cellular assays than the control drug nevirapine (NVP). Notably, three most promising compounds If (EC50 = 35 nM), la (EC50 = 43 nM) and Ila (EC50 = 41 nM) showed high potency against WT and were comparable to the reference drug delavirdine (DLV) (EC50 = 33 nM). Moreover, compounds Ib, Ilb and Ilh displayed effective activity against the most common clinically observed single and double-mutated HIV-1 strains in micromolar concentrations. In particular, the inhibition of 1lb against the K103N mutation (EC50 = 49 nM), which confers resistance to a wide variety of NNRTIs, was about 140 times more effective than NVP (EC50 = 6.78 mu M), 50 times more than DLV (EC50 = 2.48 mu M) and about 3 times more than ER/(EC50 = 0.12 M), indicating that the newly designed compounds have great potential to be further developed as new anti-HIV-1 agents. Preliminary structure-activity relationships (SARs) and molecular modeling of the new diarylpyridine derivatives were discussed in detail. (C) 2015 Elsevier Masson SAS. All rights reserved.