Optimization of a coagulation factor VIIa inhibitor found in factor Xa inhibitor library

  • Sagi K
  • Fujita K
  • Sugiki M
 et al. 
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An inhibitor of the complex of factor VIIa and tissue factor (fVIIa/TF), 2-substituted-4-amidinophenylpyruvic acid 1a, was structurally modified with the aim of increasing its potency and selectivity. The lead compound 1a was originally found in our factor Xa (fXa) inhibitor library on the basis of structural similarity of the primary binding sites of fVIIa and fXa. The design was based on computational docking studies using the extracted active site of fVIIa. Compound 1j was found to inhibit factor VIIa/TF at nanomolar concentration with improved selectivity versus fXa and thrombin and it preferentially prolonged the clotting time in the TF-dependent extrinsic pathway. © 2005 Elsevier Ltd. All rights reserved.

Author-supplied keywords

  • Factor VIIa
  • Inhibitor

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  • Kazuyuki Sagi

  • Koichi Fujita

  • Masayuki Sugiki

  • Mitsuo Takahashi

  • Shunji Takehana

  • Kazumi Tashiro

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