The trypsin-like serine proteases factor Xa and urokinase-plasminogen activator (uPA) are promising drug targets for modern therapies of diseases such as arterial or venous thrombosis and tumor metastasis, respectively. Applying methods of the rational drug design, lead structures of reversible small-molecule inhibitors based on (R)-(3-amidino)phenylalanine and 4-(aminomethyl)phenylguanidine were iteratively ameliorated. Thereby, strategies for the syntheses in solution and solid support were elaborated. In the latter case, amidino-intermediates were directly linked to the resin, while the guanidino derivatives were generated via guanidinylation with concomitant linkage to solid supports. Moreover, the binding modes of the lead structures to the target enzymes were determined and their biological activities evaluated in different in vitro and in vivo assays.
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The trypsin-like serine proteases factor Xa and urokinase-plasminogen activator (uPA) are promising drug targets for modern therapies of diseases such as arterial or venous thrombosis and tumor metastasis, respectively. Applying methods of the rational drug design, lead structures of reversible small-molecule inhibitors based on (R)-(3-amidino)phenylalanine and 4-(aminomethyl)phenylguanidine were iteratively ameliorated. Thereby, strategies for the syntheses in solution and solid support were el...
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