Tiplaxtinin, a novel, orally efficacious inhibitor of plasminogen activator inhibitor-1: design, synthesis, and preclinical characterization

J Med Chem. 2004 Jul 1;47(14):3491-4. doi: 10.1021/jm049766q.

Abstract

Indole oxoacetic acid derivatives were prepared and evaluated for in vitro binding to and inactivation of human plasminogen activator inhibitor-1 (PAI-1). SAR based on biochemical, physiological, and pharmacokinetic attributes led to identification of tiplaxtinin as the optimal selective PAI-1 inhibitor. Tiplaxtinin exhibited in vivo oral efficacy in two different models of acute arterial thrombosis. The remarkable preclinical safety and metabolic stability profiles of tiplaxtinin led to advancing the compound to clinical trials.

MeSH terms

  • Administration, Oral
  • Animals
  • Biological Availability
  • Carotid Artery Thrombosis / drug therapy
  • Coronary Thrombosis / drug therapy
  • Dogs
  • Drug Design
  • Drug Evaluation, Preclinical
  • Humans
  • Indoleacetic Acids
  • Indoles / chemical synthesis*
  • Indoles / chemistry
  • Indoles / pharmacology
  • Plasminogen Activator Inhibitor 1 / metabolism*
  • Rats
  • Serine Proteinase Inhibitors / chemical synthesis*
  • Serine Proteinase Inhibitors / chemistry
  • Serine Proteinase Inhibitors / pharmacology
  • Structure-Activity Relationship

Substances

  • Indoleacetic Acids
  • Indoles
  • Plasminogen Activator Inhibitor 1
  • Serine Proteinase Inhibitors
  • tiplaxtinin