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Updated: Jun 20, 2026

Quantitative Structure-Activity Relationship, Activity Prediction, and Molecular Dynamics of Non-nucleotide Reverse Transcriptase Inhibitors
Published on: May 9, 2025
Structure-based design of substituted biphenyl ethylene ethers as ligands binding in the hydrophobic pocket of gp41
Bin Liu1, Rhoda W Joseph, Bruce D Dorsey
1Locus Pharmaceuticals, Inc., Four Valley Square, 512 Township Line Road, Blue Bell, PA 19422, USA. bliu@locuspharma.com
Abstract:
A series of substituted biphenyl ethylene ether compounds has been designed to target the gp41N-trimer in order to inhibit formation of the six-helical bundle that represents the end state of gp41-mediated viral fusion. A size exclusion HPLC based helical bundle formation (HBF) assay was developed to evaluate in vitro inhibitory affinity of the inhibitors. The most potent compound 1 had an IC(50) of 31microM. The binding of compound 1 to the proposed hydrophobic pocket of gp41 was further validated by site-directed peptide mutagenesis experiments.
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