Discovery of sulfone containing metallo-β-lactamase inhibitors with reduced bacterial cell efflux and histamine release issues

  • Bioorg Med Chem Lett. 2024 Oct 11:114:129989. doi: 10.1016/j.bmcl.2024.129989.
Frank Bennett  1 Yuhua Huang  2 Shuzhi Dong  2 Jinlong Jiang  2 David Hunter  2 Zhiqiang Zhao  2 Xin Gu  2 Jack D Scott  2 Haiqun Tang  2 Dexi Yang  2 Li Xiao  3 Giovanna Scapin  3 Thierry Fischmann  3 Asra Mirza  4 Priya Dayananth  5 Ronald E Painter  5 Artjohn Villafania  5 Charles G Garlisi  5 Rumin Zhang  5 Todd W Mayhood  5 Qian Si  5 Nianyu Li  6 Rupesh P Amin  6 Feifei Chen  6 Bhavana Bhatt  6 Christopher P Regan  6 Hilary Regan  6 Xinjie Lin  7 Jin Wu  7 Andrew Leithead  8 Katherine Young  4 Alexander Pasternak  2
Affiliations
  • 1. Merck & Co., Inc., Department of Medicinal Chemistry, 126 E. Lincoln Avenue, Rahway, NJ 07065, USA. Electronic address: [email protected].
  • 2. Merck & Co., Inc., Department of Medicinal Chemistry, 126 E. Lincoln Avenue, Rahway, NJ 07065, USA.
  • 3. Merck & Co., Inc., Department of Computational and Structural Chemistry, 126 E. Lincoln Avenue., Rahway, NJ 07065, USA.
  • 4. Merck & Co., Inc., Department of Infectious Diseases, 770 Sumneytown Pike., West Point, PA 19486, USA.
  • 5. Merck & Co., Inc., Department of Pharmacology, 770 Sumneytown Pike, West Point, PA 19486, USA.
  • 6. Merck & Co., Inc., Department of Nonclinical Drug Safety, 770 Sumneytown Pike, West Point, PA 19486, USA.
  • 7. Merck & Co., Inc., Department of Pharmacokinetics and Pharmacodynamics, 770 Sumneytown Pike, West Point, PA 19486, USA.
  • 8. Merck & Co., Inc., Department of Pharmaceutical Sciences, 770 Sumneytown Pike, West Point, PA 19486, USA.
Abstract

The design, syntheses and Antibacterial evaluation of sulfone analogues of previously disclosed Metallo-β-lactamase inhibitors (MBLis) are described. The novel derivatives were overall more effective in gram-negative Bacterial cell-based assays when combined with imipenem and relebactam. The major contributors to the improved anti-bacterial activity are enhanced enzyme-inhibitor interactions and reduced Bacterial cell efflux monitored via an efflux assay involving isogenic Pseudomonas aeruginosa efflux + and efflux - tool strains.

Keywords
Anti-bacterial; Metallo-β-lactamase; Sulfone; β-lactamase.
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