Download MendeleyDesign, synthesis, and evaluation of oxyanion-hole selective inhibitor substituents for the S1 subsite of factor Xa
Rumthao, S., Lee, O., Sheng, Q., Fu, W., Mulhearn, D.C., Crich, D., Mesecar, A.D., Johnson, M.E.(2004) Bioorg Med Chem Lett 14: 5165-5170
- PubMed: 15380220
- DOI: https://doi.org/10.1016/j.bmcl.2004.07.054
- Primary Citation of Related Structures:
1TX8 - PubMed Abstract:
We have designed, synthesized, and evaluated the factor Xa inhibitory activities of p-amidinophenyl-sulfones, amines, and alcohols intended to take advantage of the polarity and hydrogen-bonding potential of the oxyanion hole region of the S1 specificity pocket. We demonstrate that placement of an anionic group within the oxyanion hole region of the catalytic site substantially enhances activity, with small flexible groups favored over bulkier ones. Ab initio pKa calculations suggest that the hydroxyl substituent frequently used for benzamidine moieties may be ionized to form an anionic group, consistent with the general trend. One nonamidine based substituent also shows promising activity.
Organizational Affiliation:
Center for Pharmaceutical Biotechnology, University of Illinois at Chicago, 900 S. Ashland Avenue, m/c 870, Chicago, IL 60607-7173, USA.
