1. Academic Validation
  2. Discovery of Two Novel Antiplatelet Clinical Candidates (BMS-986120 and BMS-986141) That Antagonize Protease-Activated Receptor 4

Discovery of Two Novel Antiplatelet Clinical Candidates (BMS-986120 and BMS-986141) That Antagonize Protease-Activated Receptor 4

  • J Med Chem. 2022 Jul 14;65(13):8843-8854. doi: 10.1021/acs.jmedchem.2c00359.
E Scott Priestley 1 Jacques Banville 2 Daniel Deon 2 Laurence Dubé 2 Marc Gagnon 2 Julia Guy 2 Philippe Lapointe 2 Jean-François Lavallée 2 Alain Martel 2 Serge Plamondon 2 Roger Rémillard 2 Edward Ruediger 2 François Tremblay 2 Shana L Posy 1 Victor R Guarino 1 Jeremy M Richter 1 Jianqing Li 1 Anuradha Gupta 3 Muthalagu Vetrichelvan 3 T J Balapragalathan 3 Arvind Mathur 1 Ji Hua 1 Mario Callejo 2 Jocelyne Guay 2 Chi Shing Sum 1 Mary Ellen Cvijic 1 Carol Watson 1 Pancras Wong 1 Jing Yang 1 Michel Bouvier 2 4 David A Gordon 1 Ruth R Wexler 1 Anne Marinier 2 5
Affiliations

Affiliations

  • 1 Bristol-Myers Squibb Research & Early Development, 3551 Lawrenceville Road, Princeton, New Jersey08540, United States.
  • 2 Institute for Research in Immunology and Cancer, Université de Montréal, P.O. Box 6128, Downtown Station, Montréal, QuébecH3C 3J7, Canada.
  • 3 Department of Discovery Synthesis, Biocon Bristol-Myers Squibb R&D Centre, Syngene International Ltd., Biocon Park, Plot No. 2 & 3, Bommasandra-Jigani Road, Bangalore560099, India.
  • 4 Department of Biochemistry and Molecular Medicine, Université de Montréal, Montréal, QuébecH3C 3J7, Canada.
  • 5 Department of Chemistry and Department of Pharmacology, Université de Montréal, P.O. Box 6128, Downtown Station, Montréal, QuébecH3C 3J7, Canada.
Abstract

Protease-activated Receptor 4 (PAR4) is a G-protein coupled receptor that is expressed on human platelets and activated by the coagulation enzyme Thrombin. PAR4 plays a key role in blood coagulation, and its importance in pathological thrombosis has been increasingly recognized in recent years. Herein, we describe the optimization of a series of imidazothiadiazole PAR4 antagonists to a first-in-class clinical candidate, BMS-986120 (43), and a backup clinical candidate, BMS-986141 (49). Both compounds demonstrated excellent antithrombotic efficacy and minimal bleeding time prolongation in monkey models relative to the clinically important antiplatelet agent clopidogrel and provide a potential opportunity to improve the standard of care in the treatment of arterial thrombosis.

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