Daniel Vanna Siev

Novel, potent and selective chimeric FXa inhibitors featuring hydrophobic P1-ketoamide moieties.

Judicious combination of P-region sequences of highly potent anticoagulant proteins including NAP5, NAP6, Ecotin, and Antistasin with SAR from small molecule FXa inhibitors led to a series of chimeric inhibitors of formula 1a-j. We report herein the design, synthesis, and biological activity of this novel family of FXa inhibitors that express both high in vitro potency and superb selectivity against related serine proteases.

NOVEL PROTOCOL FOR THE SOLID-PHASE SYNTHESIS OF PEPTIDYL AND PEPTIDOMIMETIC P1-ARGININAL DERIVATIVES

The design, synthesis and application of novel argininal aminals 1 tethered onto AM resin is described. Efficient solid-phase synthesis routes to a wide array of the title derivatives 2 have been implemented using this convenient technology. The resulting P1-argininal targets serve as useful exploratory scaffolds for serine and cysteine protease inhibitor discovery.