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ID: ALA1146107

Journal: Bioorg Med Chem Lett

Title: Investigation of mechanism-based thrombin inhibitors: Implications of a highly conserved water molecule for the binding of coumarins within the S pocket.

Authors: Frédérick R, Charlier C, Robert S, Wouters J, Masereel B, Pochet L.

Abstract: The synthesis of novel coumarins bearing on the lateral side chain in the 3-position an amine or a guanidine group is described. In vitro evaluation highlighted 14d which possesses a meta aniline side chain as a very potent THR inhibitor. Surprisingly, the introduction of a guanidine moiety always led to a decrease in THR inhibiting properties. We, thus, used docking experiments to rationalize the SAR in the series. This study showed the crucial role of a conserved water molecule in the specificity pocket of THR during docking simulation in order to explain the inactivity of guanidine derivatives.

CiteXplore: 16413781

DOI: 10.1016/j.bmcl.2005.12.070