The Discovery of GSK3640254, a Next-Generation Inhibitor of HIV-1 Maturation
- J Med Chem. 2022 Sep 22;65(18):11927-11948. doi: 10.1021/acs.jmedchem.2c00879.
- 1. Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, Princeton, New Jersey08543, United States.
- 2. Department of Discovery Chemistry, Bristol Myers Squibb Research and Early Development, 5 Research Parkway, Wallingford, Connecticut06492, United States.
- 3. Department of Virology, Bristol Myers Squibb Research and Early Development, 5 Research Parkway, Wallingford, Connecticut06492, United States.
- 4. Department of Discovery Synthesis, Bristol Myers Squibb Research and Early Development, PO Box 4000, Princeton, New Jersey08543, United States.
- 5. Department of Discovery Synthesis; Bristol Myers Squibb Research and Early Development, Bangalore 560099, India.
- 6. Bristol Myers Squibb Chemical and Synthetic Development, New Brunswick, New Jersey08901, United States.
- 7. Department of Pharmaceutical Candidate Optimization, Bristol Myers Squibb Research and Early Development, 5 Research Parkway, Wallingford, Connecticut06492, United States.
GSK3640254 is an HIV-1 maturation inhibitor (MI) that exhibits significantly improved Antiviral activity toward a range of clinically relevant polymorphic variants with reduced sensitivity toward the second-generation MI GSK3532795 (BMS-955176). The key structural difference between GSK3640254 and its predecessor is the replacement of the para-substituted benzoic acid moiety attached at the C-3 position of the triterpenoid core with a cyclohex-3-ene-1-carboxylic acid substituted with a CH2F moiety at the carbon atom α- to the pharmacophoric carboxylic acid. This structural element provided a new vector with which to explore structure-activity relationships (SARs) and led to compounds with improved polymorphic coverage while preserving pharmacokinetic (PK) properties. The approach to the design of GSK3640254, the development of a synthetic route and its preclinical profile are discussed. GSK3640254 is currently in phase IIb clinical trials after demonstrating a dose-related reduction in HIV-1 viral load over 7-10 days of dosing to HIV-1-infected subjects.