Abstract
DRUGS which increase the urinary excretion of uric acid are of considerable value in the treatment of gout. Although it is fairly well established that these agents act by interfering with the reabsorption of uric acid by the renal tubular cells, the structural features required for this activity have not been defined. In the course of studies with one such drug, phenyl-butazone, a relationship between chemical structure and uricosuric activity was noted. It was found that modifications in phenylbutazone, resulting in increased acidity of the molecule, are associated with enhanced uricosuric activity. However, changes which decrease the acidity of the drug are accompanied by loss of this activity.
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BURNS, J., YÜ, T., DAYTON, P. et al. Relationship between pKa and Uricosuric Activity in Phenylbutazone Analogues. Nature 182, 1162–1163 (1958). https://doi.org/10.1038/1821162a0
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DOI: https://doi.org/10.1038/1821162a0
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