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Discovery of novel 1,4-disubstituted 1,2,3-triazole phenylalanine derivatives as HIV-1 capsid inhibitors
Journal article   Open access   Peer reviewed

Discovery of novel 1,4-disubstituted 1,2,3-triazole phenylalanine derivatives as HIV-1 capsid inhibitors

Xiangyi Jiang, Gaochan Wu, Waleed A. Zalloum, Megan E. Meuser, Alexej Dick, Lin Sun, Chin-Ho Chen, Dongwei Kang, Lanlan Jing, Ruifang Jia, …
RSC advances, v 9(50), pp 28961-28986
17 Sep 2019
PMID: 32089839
url
https://doi.org/10.1039/c9ra05869aView
Published, Version of Record (VoR)CC BY-NC V4.0 Open

Abstract

Chemistry Chemistry, Multidisciplinary Physical Sciences Science & Technology
The HIV-1 capsid (CA) protein plays crucial roles in both early and late stages of the viral life cycle, which has intrigued researchers to target it to develop anti-HIV drugs. Accordingly, in this research, we report the design, synthesis and biological evaluation of a series of novel phenylalanine derivatives as HIV-1 CA protein inhibitors using the Cu(i)-catalyzed azide and alkyne 1,3-dipolar cycloaddition (CuAAC) reaction. Among this series of inhibitors, compound II-10c displayed a remarkable anti-HIV activity (EC50 = 2.13 mu M, CC50 > 35.49 mu M). Furthermore, surface plasmon resonance (SPR) binding assays showed that compounds II-10c and PF-74 (lead compound) have similar affinities to HIV-1 CA monomer. Further investigation showed that the weak permeability and water solubility of representative compounds were probably the important factors that restricted their cell-based activity. Preliminary structure-activity relationships (SARs) were inferred based on the activities of these compounds, and their known structure. The most promising new compound was studied with molecular dynamics simulation (MD) to determine the preferred interactions with the drug target. Finally, the activities of members of this series of inhibitors were deeply inspected to find the potential reasons for their anti-HIV-1 activity from various perspectives. This highlights the important factors required to design compounds with improved potency.

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Web of Science research areas
Chemistry, Multidisciplinary
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