Potent HIV-1 Protease Inhibitors Containing Carboxylic and Boronic Acids: Effect on Enzyme Inhibition and Antiviral Activity and Protein-Ligand X-ray Structural Studies
- Purdue Univ., West Lafayette, IN (United States)
- Georgia State Univ., Atlanta, GA (United States)
- National Cancer Inst., Bethesda, MD (United States); National Center for Global Health and Medicine Research Inst., Tokyo (Japan)
- National Center for Global Health and Medicine Research Inst., Tokyo (Japan)
- Kumamoto Univ. (Japan); National Cancer Inst., Bethesda, MD (United States); National Center for Global Health and Medicine Research Inst., Tokyo (Japan)
We report the synthesis and biological evaluation of phenylcarboxylic acid and phenylboronic acid containing HIV-1 protease inhibitors and their functional effect on enzyme inhibition and antiviral activity in MT-2 cell lines. Inhibitors bearing bis-THF ligand as P2 ligand and phenylcarboxylic acids and carboxamide as the P2' ligands, showed very potent HIV-1 protease inhibitory activity. However, carboxylic acid containing inhibitors showed very poor antiviral activity relative to carboxamide-derived inhibitors which showed good antiviral IC50 value. Boronic acid derived inhibitor with bis-THF as the P2 ligand showed very potent enzyme inhibitory activity, but it showed lower antiviral activity than darunavir in the same assay. Boronic acid containing inhibitor with a P2-Crn-THF ligand also showed potent enzyme Ki but significantly decreased antiviral activity. We have evaluated antiviral activity against a panel of highly drug-resistant HIV-1 variants. One of the inhibitors maintained good antiviral activity against HIVDRVRP20 and HIVDRVRP30 viruses. We have determined high resolution X-ray structures of two synthetic inhibitors bound to HIV-1 protease and obtained molecular insight into the ligand-binding site interactions.
- Research Organization:
- Advanced Photon Source (APS), Argonne National Laboratory (ANL), Argonne, IL (US)
- Sponsoring Organization:
- Japan Agency for Medical Research and Development (AMED); National Institutes of Health (NIH); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 1577162
- Journal Information:
- ChemMedChem, Journal Name: ChemMedChem Journal Issue: 21 Vol. 14; ISSN 1860-7179
- Publisher:
- ChemPubSoc EuropeCopyright Statement
- Country of Publication:
- United States
- Language:
- ENGLISH
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