Systematic Study of Effects of Structural Modifications on the Aqueous Solubility of Drug-like Molecules.

Journal: ACS medicinal chemistry letters
Published Date:

Abstract

Aqueous solubilities and activities have been measured for 17 members of the quinolinyltriazole series of inhibitors of human macrophage migration inhibitory factor (MIF). Systematic variation of a solvent-exposed substituent provided increases in solubility from 2 μg/mL for the parent compound up to 867 μg/mL. The low solubility of results from its near-planar structure and an intermolecular hydrogen bond, as revealed in a small-molecule X-ray structure. Removal of the hydrogen bond yields a 3-fold increase in solubility, but a 7-fold drop in activity. emerges as the most potent MIF inhibitor with a of 14 nM and good solubility, 47 μg/mL, while has both high potency and solubility.

Authors

  • José A Cisneros
    Department of Chemistry, Yale University , New Haven, Connecticut 06520-8107, United States.
  • Michael J Robertson
    Department of Chemistry, Yale University , New Haven, Connecticut 06520-8107, United States.
  • Brandon Q Mercado
    Department of Chemistry, Yale University , New Haven, Connecticut 06520-8107, United States.
  • William L Jorgensen
    Department of Chemistry, Yale University , New Haven, Connecticut 06520-8107, United States.

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