Structure-Based Design of Potent, Amidine-Derived Inhibitors of Factor Xa: Evaluation of Selectivity, Anticoagulant Activity, and Antithrombotic Activity
摘要:
To enhance the potency of 1,2-dibenzamidobenzene-derived inhibitors of factor Xa (fXa), an amidine substituent was incorporated on one of the benzoyl side chains to interact with Asp189 in the S1 specificity pocket. Lead molecule 1 was docked into the active site of Ma to facilitate inhibitor design. Subsequently, iterative SAR studies and molecular modeling led to a 1000-fold increase in Ma affinity and a refined model of the new inhibitors in the Ma active site. Strong support for the computational model was achieved through the acquisition of an X-ray crystal structure using thrombin as a surrogate protein. The amidines in this series show high levels of selectivity for the inhibition of Ma relative to other trypsin-like serine proteases. Furthermore, the Ma affinity of compounds in this series (K-ass = 50-500 x 10(6) L/mol) translates effectively into both anticoagulant activity in vitro and antithrombotic activity in vivo.
Structure-Based Design of Potent, Amidine-Derived Inhibitors of Factor Xa: Evaluation of Selectivity, Anticoagulant Activity, and Antithrombotic Activity
摘要:
To enhance the potency of 1,2-dibenzamidobenzene-derived inhibitors of factor Xa (fXa), an amidine substituent was incorporated on one of the benzoyl side chains to interact with Asp189 in the S1 specificity pocket. Lead molecule 1 was docked into the active site of Ma to facilitate inhibitor design. Subsequently, iterative SAR studies and molecular modeling led to a 1000-fold increase in Ma affinity and a refined model of the new inhibitors in the Ma active site. Strong support for the computational model was achieved through the acquisition of an X-ray crystal structure using thrombin as a surrogate protein. The amidines in this series show high levels of selectivity for the inhibition of Ma relative to other trypsin-like serine proteases. Furthermore, the Ma affinity of compounds in this series (K-ass = 50-500 x 10(6) L/mol) translates effectively into both anticoagulant activity in vitro and antithrombotic activity in vivo.
This application relates to a compound of formula (I), a pharmaceutically acceptable salt of the compound, or a prodrug thereof, as defined herein, pharmaceutical compositions thereof, and its use as an inhibitor of factor Xa, as well as a process for its preparation and intermediates therefor.
Structure-Based Design of Potent, Amidine-Derived Inhibitors of Factor Xa: Evaluation of Selectivity, Anticoagulant Activity, and Antithrombotic Activity
作者:Michael R. Wiley、Leonard C. Weir、Steven Briggs、Nancy A. Bryan、John Buben、Charles Campbell、Nickolay Y. Chirgadze、Richard C. Conrad、Trelia J. Craft、James V. Ficorilli、Jeffry B. Franciskovich、Larry L. Froelich、Donetta S. Gifford-Moore、Theodore Goodson、David K. Herron、Valentine J. Klimkowski、Kenneth D. Kurz、Jeffery A. Kyle、John J. Masters、Andrew M. Ratz、Guy Milot、Robert T. Shuman、Tommy Smith、Gerald F. Smith、Ann Louise Tebbe、Jennifer M. Tinsley、Richard D. Towner、Alexander Wilson、Ying K. Yee
DOI:10.1021/jm9903287
日期:2000.3.1
To enhance the potency of 1,2-dibenzamidobenzene-derived inhibitors of factor Xa (fXa), an amidine substituent was incorporated on one of the benzoyl side chains to interact with Asp189 in the S1 specificity pocket. Lead molecule 1 was docked into the active site of Ma to facilitate inhibitor design. Subsequently, iterative SAR studies and molecular modeling led to a 1000-fold increase in Ma affinity and a refined model of the new inhibitors in the Ma active site. Strong support for the computational model was achieved through the acquisition of an X-ray crystal structure using thrombin as a surrogate protein. The amidines in this series show high levels of selectivity for the inhibition of Ma relative to other trypsin-like serine proteases. Furthermore, the Ma affinity of compounds in this series (K-ass = 50-500 x 10(6) L/mol) translates effectively into both anticoagulant activity in vitro and antithrombotic activity in vivo.