Design, synthesis and biological evaluation of selective boron-containing thrombin inhibitors
作者:Anette Wienand、Claus Ehrhardt、Rainer Metternich、Carlo Tapparelli
DOI:10.1016/s0968-0896(99)00069-3
日期:1999.7
Based on the structural comparison of the S-l pocket in different trypsin-like serine proteases, a series of Boc-D-trimethylsilylalanine-proline-boro-X pinanediol derivatives, with boro-X being different amino boronic acids, have been synthesised as inhibitors of thrombin. The influence of hydrogen donor/acceptor properties of different residues in the P-1 side chain of these inhibitors on the selectivity profile has been investigated. This study confirmed the structure-based working hypothesis: The hydrophobic/hydrophilic character of amino acid residues 190 and 213 in the neighbourhood of Asp 189 in the S-1 pocket of thrombin (Ala/Val), trypsin (Ser/Val) and plasmin (Ser/Thr) define the specificity for the interaction with different P-1 residues of the inhibitors. Many of the synthesised compounds demonstrate potent antithrombin activity with Boc-D-trimethylsilylalanine-proline-boro-methoxypropylglycine pinanediol (9) being the most selective thrombin inhibitor of this series. (C) 1999 Elsevier Science Ltd. All rights reserved.