申请人:Wellstat Therapeutics Corporation
公开号:US20170042844A1
公开(公告)日:2017-02-16
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 I, t is 0 or 1; q is 0 or 1; and r is 0, 1 or 2. R
7
is hydrogen or alkyl having from 1 to 3 carbon atoms. R
6
is hydrogen, hydroxy, halo, alkyl having from 1 to 3 carbon atoms, alkoxy having from 1 to 3 carbon atoms, nitro, thio, alkylthio, or cyano. X is C(O) or NH(R
8
) wherein R
8
is hydrogen or alkyl having from 1 to 3 carbon atoms; provided that when X is C(O), r is 0 and t is 0. A is phenyl, unsubstituted or substituted by 1 or 2 groups selected from halo, hydroxy, methyl, ethyl, perfluoromethyl, methoxy, ethoxy, perfluoromethoxy, nitro, and amino; or a 5 or 6 membered heteroaromatic 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 of Formula I by a ring carbon; or cycloalkyl having from 3 to 6 ring carbon atoms wherein the cycloalkyl is unsubstituted or one or two ring carbons are independently monosubstituted by methyl or ethyl.
在哺乳动物主体中,通过给予式I的化合物可降低尿酸并增加尿酸的排泄。本发明的化合物的降尿酸作用可用于治疗或预防多种疾病,包括痛风、高尿酸血症、尿酸水平升高但未达到通常诊断为高尿酸血症水平、肾功能障碍、肾结石、心血管疾病、发展心血管疾病的风险、肿瘤溶解综合征、认知障碍、早发性高血压和疟原虫引起的炎症。在式I中,t为0或1;q为0或1;r为0、1或2。R7为氢或具有1至3个碳原子的烷基。R6为氢、羟基、卤素、具有1至3个碳原子的烷基、具有1至3个碳原子的烷氧基、硝基、硫、烷基硫基或氰基。X为C(O)或NH(R8),其中R8为氢或具有1至3个碳原子的烷基;但当X为C(O)时,r为0且t为0。A为苯基,未取代或由卤素、羟基、甲基、乙基、全氟甲基、甲氧基、乙氧基、全氟甲氧基、硝基和氨基中选择的1或2个基团取代;或者为含有1或2个来自N、S和O的环异原子的5或6元杂环芳烃环,且该杂环芳烃环通过一个环碳原子与式I的剩余部分共价结合;或者为具有3至6个环碳原子的环烷基,其中环烷基未取代或一个或两个环碳原子独立地由甲基或乙基单取代。