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Updated: Apr 17, 2026

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
Published on: May 9, 2025
Design, synthesis of new β-carboline derivatives and their selective anti-HIV-2 activity
Penta Ashok1, Subhash Chander1, Jan Balzarini2
1Medicinal Chemistry Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science, Pilani 333031, India.
Abstract:
In the present study, a new series of β-carboline derivatives were synthesized and evaluated for inhibition activity against both HIV-1 and HIV-2 strains. Among these reported analogues, surprisingly (1-phenyl-9H-pyrido[3,4-b]indol-3-yl)(4-p-tolylpiperazin-1-yl)methanone (7b), (4-(2-methoxyphenyl)piperazin-1-yl)(1-phenyl-9H-pyrido[3,4-b]indol-3-yl)methanone (7f), (4-(4-fluorophenyl)piperazin-1-yl)(1-phenyl-9H-pyrido[3,4-b]indol-3-yl)methanone (7k), (4-(2-fluorophenyl)piperazin-1-yl)(1-phenyl-9H-pyrido[3,4-b]indol-3-yl)methanone (7l) displayed selective inhibition of HIV-2 strain with EC50 values of 3.3, 3.2, 2.6 and 5.4μM, respectively, which are comparable with nucleoside reverse transcriptase inhibitors lamivudine and dideoxyinosine. As these analogues have not shown in vitro HIV-2 reverse transcriptase inhibition, it could be excluded as potential target for their specific anti-HIV-2 activity.
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