Novel Morpholinone-Based ?-Phe-Pro-Arg Mimics as Potential Thrombin Inhibitors: Design, Synthesis, and X-ray Crystal Structure of an Enzyme Inhibitor Complex

Autor: Anders Dahlgren, Per Johansson, Ingemar Kvarnström, Djordje Musil, Ingemar Nilsson, Bertil Samuelsson
Rok vydání: 2002
Předmět:
Zdroj: Bioorganic & Medicinal Chemistry. 10:1829-1839
ISSN: 0968-0896
DOI: 10.1016/s0968-0896(02)00023-8
Popis: A morpholinone structural motif derived from D(+)- and L(-)-malic acid has been used as a mimic of D-Phe-Pro in the thrombin inhibiting tripeptide D-Phe-Pro-Arg. In place of Arg the more rigid P1 truncated p-amidinobenzylamine (Pab) or 2-amino-5-aminomethyl-3-methyl-pyridine have been utilized. The synthetic strategy developed readily delivers these novel thrombin inhibitors used to probe the alpha-thrombin inhibitor binding site. The best candidate in this series of thrombin inhibitors exhibits an in vitro IC(50) of 720 nM. The X-ray crystal structure of this candidate co-crystallized with alpha-thrombin is discussed.
Databáze: OpenAIRE