Importance

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Abstract

Uric acid in mammalian subjects is reduced and excretion of uric acid is increased by administering a compound of Formula I. The uric acid-lowering effects of the compounds of this invention are used to treat or prevent a variety of conditions including gout, hyperuricemia, elevated levels of uric acid that do not meet the levels customarily justifying a diagnosis of hyperuricemia, renal dysfunction, kidney stones, cardiovascular disease, risk for developing cardiovascular disease, tumor-lysis syndrome, cognitive impairment, early-onset essential hypertension, and Plasmodium falciparum-induced inflammation. In Formula 1, x is 1 or 2: y is O, 1, 2 or 3; and R¹ is selected from the group consisting of hydrogen, alkyl having 1 or 2 carbon atoms, hydroxy, alkoxy having 1 or 2 carbon atoms, fluoro, chloro, bromo, and amino. A is phenyl unsubstituted or substituted by one, two or three groups selected from the group consisting of halo, alkyl having 1 or 2 carbon atoms, perfluoromethyL alkoxy having 1 or 2 carbon atoms, and perfluoromethoxy; or cycloalkyl having from 3 to 6 ring atoms wherein the cycloalky! is unsubstituted or one one two ring carbons are independently mono-substituted by methyl or ethyl; or a 5 or 6 membered heleraromatic ring having 1 or 2 ring heteroatoms selected from N, S and O and the heteroaromatic ring is covalently bound to the remainder of the compound by a ring carbon.

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First Claim