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Title: Fused heterocycles bearing bridgehead nitrogen as potent HIV-1 NNRTIs. Part 4: Design, synthesis and biological evaluation of novel imidazo[1,2-a]pyrazines
Authors: Huang, Boshi ×
Liang, Xin
Li, Cuicui
Chen, Wenmin
Liu, Tao
Li, Xiao
Sun, Yueyue
Fu, Lu
Liu, Huiqing
De Clercq, Erik
Pannecouque, Christophe
Zhan, Peng
Liu, Xinyong #
Issue Date: Feb-2015
Series Title: European Journal of Medicinal Chemistry vol:93 pages:330-337
Article number: S0223-5234(15)00118-X
Abstract: Through a structure-guided core-refining approach, a series of novel imidazo[1,2-a]pyrazine derivatives were designed, synthesized and evaluated as HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs). Biological results of antiviral assay in MT-4 cell cultures showed that 12 target compounds displayed moderate activities against wild-type (wt) HIV-1 strain (IIIB) with EC50 values ranging from 0.26 μM to 19 μM. Among them, 4a and 5a were found to be the two most active analogues possessing EC50 values of 0.26 μM and 0.32 μM respectively, comparable to delavirdine (DLV, EC50 = 0.54 μM) and nevirapine (NVP, EC50 = 0.31 μM) in a cell-based assay. Additionally, 9 compounds showed RT inhibitory activity superior to that of NVP. Moreover, some predicted drug-like properties of representative compounds 4a and 5a, as well as the structure-activity relationship (SAR) analysis were discussed in detail. The binding mode of compound 4a was investigated by molecular simulation studies.
URI: 
ISSN: 0223-5234
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Laboratory of Virology and Chemotherapy (Rega Institute)
× corresponding author
# (joint) last author

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