Synthesis and biological activity of P-2-P-4 azapeptidomimetic P-1-argininal and P-1-ketoargininamide derivatives: A novel class of serine protease inhibitors

Molecular modeling and topographic considerations of the thrombin-specific sequences Boc-Asp-Pro-Arg-TS or Ac-d-Phe-Pro-Arg-TS (TS = transition state analog electrophilic center) and related scaffolds led to the design of novel P-2-P-4-azapeptidomimetic P-1-argininal and P-1-ketoargininamide derivatives (3a-j). The synthesis and biological activity of these potential serine protease inhibitors are presented. (C) 1997, Elsevier Science Ltd.